Test your understanding of \(\pi\), circumference, diameter, and curved distances in circles.

Try to answer the questions before checking the answers at the bottom of the page.

Question 1

What does π represent?

A) Radius divided by diameter
B) Circumference divided by diameter
C) Diameter divided by radius

Question 2

What is the approximate value of \(\pi\)?

A) 2.14
B) 3.14
C) 4.14

Question 3

What is the circumference formula using diameter?

A) \(C=D + \pi\)

B) \(C=\pi D\)

C) \(C=\frac{\pi}{D}​\)

Question 4

A circle has diameter:

\(D=10 m\)

Using:

\(\pi \approx 3.14\)

find the circumference.

A) \(31.4 m\)

B) \(20 m\)

C) \(15.7 m\)

Question 5

A circle has circumference:

\(C=100 m\)

What is the semicircle distance?

A) \(25 m\)

B) \(50 m\)

C) \(100 m\)

Answers

1. B) Circumference divided by diameter
2. B) \(3.14\)
3. B) \(C=\pi D\)
4. A) \(31.4 m\)
5. B) \(50 m\)

Practice

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