Question

9 cm, Find the surface areas and volumes of spheres of the given radii. ( = 3.14)

Answer 1

volume of sphere is 4/3 x π x r^3
3044.45(approximately)
surface area of sphere is 4πr^2
1017.36
I hope this helps you

Answer 2

Given ,
radii(r)= 9cm
We know that,
A sphere with radius r has a volume of (4/3)πr³  and a surface area of 4πr²,
Hence,

Surface area of sphere is= 4πr²
= 4×3.14× (9²)

= 12.56× 36

= 452.16cm²

Volume of sphere is= (4/3)πr³
= (4/3)×3.14× (9³)

= (12.56/3)× 36×9

= 12.16 × 12×9

= 1356.48cm³