Question

diameter circle 7cm area??

Answer 1

d=7
r=3.5
area of circle=pie x r²
=3.14 x 3.5²
=3.14 x 12.25
=38.465cm²

Answer 2

Given diameter =7cm
So, radius of circle =7/2cm
Area of circle =
$\pi \: rsquare$
=22/7×7/2×7/2
=38.5 cm square.