10.1 Geometry Practice

• circumference

• radius

• diameter

• center

The diameter of a circle is 8. What is the radius?

• 32∏

• 8∏

• 4

• 16

The exact circumference of a circle with a radius of 6 is ____.

• 12∏

• 6∏

• 24.4∏

• A.37.7

If the circumference of a circle is 56.5, find the radius to the nearest whole number.

• 89

• 16

• 9

• 18

The diameter of a circle is 7.5. Find the circumference to the nearest tenth.

• 35.4

• 47.1

• 23.6

• 16.8

In the figure, ABCD is a square and AC = 22. Find the circumference of the circle to the nearest tenth.

• 69.1

• 48.9

• 24.4

• 34.6

In the figure below, the diagonals of the square pass through the center of the circle. Find the exact circumference of the circle.

• 14∏

• 7 ∏

• 28

• 7√2∏

Find the exact circumference of the circle in the figure.

• 17

• 17∏

• 4.25∏

• 8.59∏

Refer to circles B and D in the figure below. If BC = 5 and CD = 5, find AE.

• 25

• 10

• 20

• 15