Circles

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5 points

What is the formula for finding the area of a circle?

A= 3.14 x R squared

A= 3.14 x D squared

A = 3.14 x D

A= 3.14 x R

5 points

What is the area of a circle with a radius of 17 meters?

1907.46 meters squared

106.76 meters squared

907.46 meters squared

303.67 meters squared

5 points

If the radius is 7 what is the diameter?

5 points

Find the Circumference of a circle with a Diameter of 9 inches.

14.13 inches

25.12 inches

28.26 inches

30.43 inches

5 points

What is the area of a circle with a diameter of 8 inches?

50.24 inches squared

200.96 inches

200.96 inches squared

50.24 inches

5 points

If the Radius is 17 what is the Diameter?

8.5

5 points

Round this to the nearest tenths place

4.4354

4.3

4.4

4.5

5 points

What is the formula for finding the radius?

r= d x2

r= d - 2

r= d/2

r= d + 2

5 points

What is the formula for finding the Circumference of a circle?

C = 3.14 x D

C = 3.14 x R

C = 3.14 x R squared

C = 3.14 X D squared

10.

5 points

If the Radius is 20 what is the Diameter?

100

11.

5 points

Find the Circumference of a circle with a Diameter of 13 ft.

20.41 feet

40.82 yards

20.41 yards

40.82 feet

12.

5 points

If the radius is 6.5 what is the diameter?

13.

5 points

If the radius is 12 what is the diameter?

14.

5 points

Find the circumference of a circle with a radius of 5.5 miles.

32.33 miles

34.54 miles

17.27 miles

16.84 miles

15.

5 points

What is the area of a circle with a radius of .75 inches?

176.625 inches squared

342.2 inches squared

228.67 inches squared

234.56 inches squared

16.

5 points

What is the formula for finding the diameter?

D= r / 2

D= r - 2

D= r x 2

D= r + 2

17.

5 points

What is the area of a circle with a radius of 20?

1200 units squared

1256 units squared

256 units squared

56 units squared

18.

5 points

What is the area of a circle with diameter of 22 inches?

554.43 inches squared

379.94 inches squared

1519.76 inches squared

467.86 inches squared

19.

5 points

Round this to the nearest hundredths place.

9.7373

9.74

9.75

9.7

20.

5 points

Find the circumference of a circle with a radius of 12 cm.

75.36 cm

71.54 cm

79.60 cm

77.43 cm

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