Question

the circumference of a circle is 11.4mm. find the length of the diameter. give your answer rounded to 3SF.

Answer 1

3.627 = d

Explanation:

C = 11.4mm

d = ?

C = πd

11.4 = 22/7 × d

cross multiply

11.4 ×7 = 22d

79.8 = 22d

Divide both sides of the equation b 22

79.8/22 = 22d/22

3.627 = d