Question

Please show the working out as well x

Answer 1

a) C=31.42 units

b) A=78.55 SQ UNITS

Explanation:

C=2(pi)r

C=2(3.142)5

C=31.42 units

A=(Pi)r^2

A=(3.142) x 5^2

A=3.142 X 25

A=78.55 SQ UNITS