Question

find the area of circle take π=3.14 el whose diameter 12mm

Answer 1

D= 12 MM
then, r= 6 mm

we know that area of circle =
$\pi \times r {}^{2}$

then, area of circle= 3.14×36

then,
area of circle = 113.14 square mm

Answer 2

Given,
D=12mm
r=12/2=6mm
area of circle=πrsq.
=3.14×6×6
=113.04 mm.sq.
=11.30 cm.sq