Question

Work out the circumference of a circle with diameter 1.8 take pi to be 3.142 and give your answer to 1 decimal place

Answer 1

C = 5.65 units

Explanation:

Given that,

The diameter of a circle, d = 1.8

Radius, r = d/2 = 0.9

We need to find the circumference of a circle. It is given by the relation as follows :

`C=2\pi r\\\\C=2* 3.142* 0.9\\\\C=5.65\ \text{unit}`

So, the circumference of a circle is 5.65 units.