Finding Unknown Angle Measures

Question 1

Which statements are true about the components of a circle? Check all that apply.

Revolt · Accepted Answer

A: The radius is half the length of the diameter.; C: The circumference is the perimeter of a circle.; D: To find the circumference, multiply by the diameter.

Question 2

The radius is cm. The circumference in terms of π is π cm. Using 3.14 for π, the approximate circumference of the circle is cm.

Revolt · Accepted Answer

B: 7/4

Question 3

Kevin needs to run 320 meters a day for his training program. He plans on running around the high school track shown. If he runs around the track once, will he meet his daily goal?

Revolt · Accepted Answer

A: No, he will still need to run 50 more meters.

Question 4

The diameter is cm. The circumference in terms of is cm. Using 3.14 for , the approximate circumference of the circle is cm.

Revolt · Accepted Answer

C: 10.8

Question 5

Choose which statements are true about . Check all that apply.

Revolt · Accepted Answer

C: is approximately 3.14.; D: represents the ratio of the circumference to the diameter.; E: is approximately

Question 6

The circumference of a circle is 16 ft.The radius is ft.

Revolt · Accepted Answer

8

Question 7

Describe what is and explain how it is used in finding the circumference of a circle.

Revolt · Accepted Answer

Pies approximately 3.14 or 22/7 Pi is the ratio of the circumference to the diameter and the ratio can be rearranged to find the circumference by multiplying times the

Question 8

21 ft66 ft120 ft132 ft

Revolt · Accepted Answer

D: 132 ft

Question 9

A bicycle wheel has a circumference of 62 inches. Find the diameter of the wheel. If necessary, round to the tenths place.

Revolt · Accepted Answer

B: 19.7 inches

Question 10

What was her error?

Revolt · Accepted Answer

B: She forgot to multiply the radius by 2 in the formula.

Finding Unknown Angle Measures Answers

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