Question

Work out the circumference of a circle with diameter 1.8 cm.

Take a to be 3.142 and give your answer to 1 decimal place.​

Answer 1

The answer is

5.6 cm

Explanation:

Circumference of a circle( C) = πd

where d is the diameter

π = 3.142

From the question

d = 1.8cm

Substitute d = 1.8 into the above formula

Circumference of the circle is

3.142 × 1.8

= 5.6556

We have the final answer as

C = 5.6 cm to one decimal place

Hope this helps you