3 years ago

A circular tabletop has a circumference of 94.2 inches. What is its diameter? 15 in.

2 answers:

8 0

The circumference = 2 pi radius
94.2 = 2 × 3.14 × radius
94.2 = 6.28 × radius
94.2÷6.28 = radius
15 = radius
radius = 1/2 diameter
diameter = 2 × radius
diameter = 2 × 15
diameter = 30 in.

vodomira [7]3 years ago

4 0

Circumference is pi*diameter, so 94.2/ pi = 30, so the answer is C. 30 in

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