Question

the circumference of a circle is 38.8km find the length of the radius give your answer rounded to 3 SF

Answer 1

6.18km

Explanation:

circumference= diameter×π

38.8km÷π=12.350423583931.... this is the diameter

12.3504...÷2=6.1752117919655..... is the radius

radius rounded to 3sf= 6.18km i think