Find the area of the unshaded region in Fig, where ABCD is a square of side 20 cm and semicircles are drawn with each side of the square as diameter. (Use π = 3.14)​

Find The Area Of The Unshaded Region In Fig, Where ABCD Is A Square Of Side 20 Cm And Semicircles Are

Answers

Answer 1

Answer:

229

Step-by-step explanation:

Area of square is = 20 * 20 = 400

radius = 20 / 2 = 10

Area of semi circle is = 1/2 * πr²

= 1/2 * 3.14 * 10²

= 1/2 / 314

= 157

assume there are four shaded regions for the figure

Area of 4 semicircles−Area of shaded region=Area of square ABCD

Area of shaded region=Area of 4 semicircles−Area of square ABCD

= 4 * 157 - 400

= 628 - 400

= 228

so each single shaded area is 228/4

= 57

now in your problem there are 3 shaded regions like this

so area of unshaded region is =

Area of square - 3 * shaded region area of one region

=> 400 - 3 * 57

=> 400 - 171

=> 229


Related Questions

B-girls spend time in bars, drinking and waiting to be picked up by customers. It is common to find B-girls in towns:

Answers

B-girls are more commonly found in towns with military bases.

The term "B-girls" is used to refer to women who are in bars and whose role is to entertain customers and motivate them to spend more money.

This term is often a synonym of "bar girls" or "hostess"; moreover, depending on the type of bar these girls offer different services including sexual services.

Besides this, b-girls are more common in towns or areas with a higher number of possible male customers. This includes towns with military bases because these are related to a high number of men and many of them are bar customers, which makes it profitable to have b-girls in these areas.

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Ms. Smith has part of $1240 invested at 9% and the rest at 6.5%. If the annual
return from the two investments is the same, how much is invested at each
rate?

Answers

Answer:

Step-by-step explanation:

Let x be the amount invested at 9%.

Then the amount invested at 6.5% is  1240-x  dollars.

From the condition, you have this equation

   0.09x = 0.065*(1240-x).

x=520

What is the value of x?
A. 5
B. 2.5
C. 7.5
D. 10

Answers

Answer:

x = 5

Step-by-step explanation:

x is to x+5 what x-2 is 70 x+1

x/x+5 = x-2/x+1

x(x+1) = (x-2)(x+5)

x^2+x = x^2+ 5x - 2x - 10

x^2 - x^2 = -x + 5x - 2x - 10

10 = 2x

x = 5

Question 9 of 10
Solve -4x+ 2 26.
0 A. x-6
0 B. )( 6 0 C. -6 0 D. )( 6

Answers

Answer:

The answer is (C.

Step-by-step explanation:

Answer:

C. x≤−6

Step-by-step explanation:

The next event requires each runner to jump 8 hurdles that are spaced 12. 3 meters apart. If there are 15 meters from the starting line to the first hurdle and 10. 5 meters from the last hurdle to the finish line, how long is the race? Show your work.

Answers

The race is 123.90 meters long.

Since the next event requires each runner to jump 8 hurdles that are spaced 12.3 meters apart, if there are 15 meters from the starting line to the first hurdle and 10.5 meters from the last hurdle to the finish line, to determine how long is the race, the following calculation must be performed:

8 x 12.30 + 15 + 10.5 = X 98.4 + 25.5 = X 123.90 = X

Therefore, the race is 123.90 meters long.

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QUICK!!!!!

Solve for x: 3x - 24 = 81
Answers:
A 105
B 105/3
C 53/3
D 53

Answers

Answer:

105/3

Step-by-step explanation:

3x - 24 = 81

84 + 24 = 105

3/3 = 105/3

Step-by-step explanation:

3x - 24 = 81

3x = 81 + 24

3x = 105

x = 105/3

Option → B

solve pls brainliest

Answers

answer: 800 i think for part a for part b 7 i think correct me if i’m wrong

A fully loaded truck has a weight of 3 1/2 tons. What is the weight of the truck in
pounds? Record your answer and fill in the bubbles on the grid below. Be sure
to use the correct place value.

Answers

The answer is 7,000 pounds because each ton is 2,000 pounds

find the slope and y-intercept

Answers

Answer:

Slope = 3

y-intercept: 0

Step-by-step explanation:

(1,3) and (2,6)

Slope: (6-3)/(2-1) = 3/1 = 3

y-intercept: 3 - (3)(1) = 3-3 = 0

y = 3x

I need some help please help

Answers

Answer:

F(x) < 0 over the intervals (-∞, -0.7) and (0.76 , 2.5)

Step-by-step explanation:

F(x) is below 0 => y is negative on line between the intervals  (-∞, -0.7) and (0.76 , 2.5) for the rest it is above the line (>0 or y is positive)

I need help :) pleaseeeeeeeeeeeeeee

Answers

Answer:

40-5g

Step-by-step explanation:

have a niceeeeeeeeeee day

Answer:

[tex]40 - 25g[/tex]

Step-by-step explanation:

[tex]5(8 - 5g) \\ 40 - 25g[/tex]

Here you can simply solve the brackets.

How can you do it is,

You have to multiply each term inside the brackets by 5.

Hope this helps you.

Let me know if you have any other questions :-)

Find the slope of the line

Answers

Answer:

-3 / 2

Step-by-step explanation:

the answer is a fraction.

go "down 3" and "right 2"

this explains the fraction in word terms (down represents the negative number while right represents the direction of the point)

If you like my answer please mark me brainliest <33!!

pls help will give brainly if possible

Answers

Answer:

A= (1:2)

B= (4:4)

Step-by-step explanation:

Hope this helps improve possible pls brainliest

Do number 6. This is not a quiz this is for my students are you gonna help them?

Answers

Answer:

nope I think your students should be smarter then they can teach me how to do whatever that is and I can help someone else someday

Answer:

=c

Step-by-step explanation:

b−a−b−b+a+b+c

=b+−a+−b+−b+a+b+c

Combine Like Terms:

=b+−a+−b+−b+a+b+c

=(−a+a)+(b+−b+−b+b)+(c)

=c

last 4 is any1 is willing to help me ?!
+5 extra points .

Answers

Answer:

35 degrees for first one but i d k the others

Step-by-step explanation:

Line m has an equation of y = 3x + 2

Identify the slope:

What is the slope of a line that is parallel to m?

What is the slope of a line that is perpendicular to m?

Answers

Answer:

y = 3x-2

Step-by-step explanation:

PLEASE ANSWER ASAP!!

Explain two different ways to solve 72^2/4

Answers

Answer:

Step-by-step explanation:

[tex]72^{\frac{2}{4}}=72^{\frac{1}{2}}= \sqrt{2*2*2*3*3}\\\\\\=2*3*\sqrt{2}\\\\=6\sqrt{2}[/tex]

What is the difference between conduction and thermal radiation?

Answers

Answer:

Conduction is defined as the movement of heat along a body or between two bodies. Heat flows from the hotter to the cooler region until the temperature is uniform. Radiation is the wave-like transfer of heat.

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The graph shows a system of equations: Draw a line labeled y equals x plus 4 by joining the ordered pairs negative 4, 0 and 1, 5. Draw a line labeled 3 times y equals minus 2 x plus 2 by joining the ordered pairs negative 2, 2 and 4, negative 2. What is the solution to the system of equations? a (−2, 2) b (2, 2) c (2, −2) d (−2, −2)

Answers

Answer:

A

Step-by-step explanation:

The problem wants you to solve graphically, but I don't have graph paper with me. To solve graphically, draw a straight line between the ordered pairs it gives and find the intersection. I will also solve algebraically; setting up our equations we get y=x+4 and 3y=-2x+2. By multiplying the first equation by 3, we can solve by elimination, resulting in 0=5x+10. After rearranging we have x=-2 and plugging back into y=x+4 gives y=2. Therefore our final answer is (-2,2) or A.

someone help!!! 10 points!!

Answers

Answer:

Start by putting a point at (-3,-4). Then, go up 1 and to the right 2 continously.

Step-by-step explanation:

2a³b⁴ can you write it as expanded form and please the answer

Answers

Step-by-step explanation:

[tex] = 2 {a}^{3} {b}^{4} [/tex]

[tex] = 2 {a}^{3} {b}^{3 + 1} [/tex]

[tex] = 2b \times {a}^{3} {b}^{3} [/tex]

[tex] = 2b \times {(ab)}^{3} [/tex]

Step-by-step explanation:

2×a×a×a×b×b×b×b.

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12. Kareem worked 2016 hours last year. He worked the some number of hours per week for 48 weeks. How many hours did he work per weck? He worked hours per week​

Answers

Answer:

42 hours a week

Step-by-step explanation:

2016 hours worked in 48 weeks

2016 ÷ 48 = 42

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Answers

1/4 or maybe 2/8


i might be wrong and its because i didn’t really understand the question.
1
— is the simplest form
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Ling Ling, a giant panda, eats an average of 40 pounds of bamboo every day! At that rate,
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Answers

Answer:

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Step-by-step explanation:

take the days of the year (365) multiplied by how many lbs a day (40) which would be 14600 lbs

Answer:

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Step-by-step explanation:

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Answers

Answer:

n=1/3 or  n=0.3, the 3 is infinite so put the line ontop of the 3

Step-by-step explanation:

Answer:

n = 0.33 or 1/3

Step-by-step explanation:

opposite operations ( + becomes - ) ( × becomes ÷ )solve for the unknown ( n ) steps are clearly shown in the photo

hope i helped you ... if I did can I get brainliest have a nice day

each side of a square is increasing at a rate of 6 cm/s

Answers

Answer:

16.. hope it helps :)

Step-by-step explanation:

If a graph of the quadratic equation is given, how do you find the vertex?

Answers

Answer:

Look for the lowest point of the curve

Step-by-step explanation:

The vertex is generally where two or more curves meet, so if you have a standard ax2+bx+c quadratic, it would be the lowest point of the graph.

The image below should point it out.

What is

3.5x - 7 + 90?

Answers

Answer:

7/2x + 83

Step-by-step explanation:

What is

3.5x - 7 + 90?

3.5x - 7 + 90 =

7/2x - 7 + 90 =

7/2x + 83

What is the division problem represented by this model?
https://dw6y82u65ww8h.cloudfront.net/organisations/328/9a16a3d1-5573-4497-97ef-6ea37852c85b/img_decimal_division_5.gif0.42 ÷ 6
0.32 ÷ 8
0.32 ÷ 6
0.42 ÷ 7

Answers

Answer:

0.04= 0.32/8

0.0533333333= 0.32/6

0.6= 0.42/7

Step-by-step explanation:

What is the formula for rate of interest?

Answers

Answer:

Interest Rate = (Simple Interest × 100)/(Principal × Time).

Step-by-step explanation:

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