Question

Find the diameter of a circle whose circumference is 15.7 cm.​

Answer 1

Step-by-step explanation:

Given that

Circumference of circle (c) is 15.7cm

To find

Diameter of a circle

Solution

as

$circumference \: of \: circle = 2\pi \times r$

$15.7 = 2\pi \times r$

$r = \frac{15.7}{2\pi}$

$r = 2.49cm$

hence

$diameter = 2 \times r \\ = 2 \times 2.49 \\ = 4.99cm$

hence diameter is 4.99cm.