Question

if the total surface area of ball 2826 cm square find it radius (3.14)
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Answer 1

Surface area of sphere= 2826

4πr2=2826

4×3.14×r2=2826

12.56×r2=2826

r2=2826/12.56

r2=225

r=√225

r=15cm

volume of sphere=4/3πr3

=4/3×3.14× (15)3

4/3×3.14×3375

=42390/3

=14130cm3