Question

find the area of a circle whose diameter is 7.2 millimetre​

Answer 1

Answer:

40.7150407905mm squared

Step-by-step explanation:

A=pi R squared

D= 7.2 mm /2 = 3.6mm

R=3.6mm squared = 12.96mm squared

A= 12.96pi OR 40.7150407905mm squared (you can round it)

Answer 2

Answer:

40.715 mm^2

Step-by-step explanation:

Radius= Diameter/2

Area of circle

$\pi r {}^{2}$

3.14×3.6^2=40.715mm^2.