Question

Equations - Item 2829

Answer 1

The formula is used to find the diameter of circle is: $d = \frac{C}{3.14}$

The diameter of circle is 5.1 cm

Solution:

Given that,

Circumference (C) of a circle is 16 cm

The formula for circumference of circle when diameter is given is:

$C = \pi d\\\\\pi \text{ is a constant equal to 3.14}\\\\C = 3.14d$

Rearrange the formula to get "d"

Divide both sides by 3.14

$d = \frac{C}{3.14}$

The above formula is used to find the diameter of circle

Given that, circumeference = C = 16 cm

Substituting we get,

$d = \frac{16}{3.14}\\\\d = 5.095 \approx 5.1$

Thus diameter of circle is 5.1 cm