Question

find the circumference of the a circle whose radius is 7.4 km

Answer 1

SOLUTION :-

r = 7.4 km

we know that,

Circumference = 2 pi r

Circumference = 2× 3.14 × 7.4

Circumference = 46.472 km. (Ans)

Answer 2

Circumference of circle is

46.47 km