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3 votes
Calculate the circumference of a circle with diameter 5 cm. Round to 2 d.p.

2 Answers

5 votes

Answer:

15.71 cm

Explanation:

Use the circumference formula, C = 2
\pir

Since the radius of half of the diameter, the radius will be 2.5 cm

Plug in the radius into the formula and solve:

C = 2
\pir

C = 2
\pi(2.5)

C = 15.71

So, the circumference of the circle is approximately 15.71 cm

User Ivanhoe
by
6.4k points
5 votes

Answer:

15.71 cm

Explanation:

Equation for the circumference of a circle: 2πr or dπ where r is the radius & d is the diameter.

5*π = 15.71

User Baltimark
by
7.3k points