Question

if the surface area of square is 9 pi square centimetres , then it's diameter is 1.5 cm..
state TRUE or FALSE with a valid reason...​

Answer 1

Answer:

The surface area of sphere =616cm

2

Since, the surface area of sphere =4πr

2

Therefore,

4πr

2

=616

πr

2

=154

r

2

=49

r=7cm

Hence, the radius of the sphere is 7cm.