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4 votes
What is the circumference of a circle when the diameter is 3

2 Answers

5 votes

Answer:

C=3π OR around 9.42478...

Explanation:

If the diameter is 3, then the radius is 1.5

C=2πr

C=2π(1.5)

C=3π [You can also see that you could find the circumference by multiplying the diameter to pi because 2r is diameter.]

C= roughly 9.42478...

User Sbac
by
7.0k points
4 votes

Answer:

9.42 units (3 s.f.)

Explanation:

Circumference of circle= 2πr

Radius

= diameter ÷2

= 3 ÷2

= 1.5

Circumference of circle

= 2(π)(1.5)

= 3π

= 9.42 units (3 s.f.)

User Kaspersky
by
7.2k points