Assume t = - F, unless stated otherFind the surface area of a sphere o

1.	Assume t = - F, unless stated otherFind the surface area of a sphere of radius: 10.5 cm(i) 5.6 cm
Answer» (i) Radius of the sphere (r) = 10.5cm Surface area of a sphere= 4πr² = (4 × 22/7 × 10.5 × 10.5) = 1386 cm² ii)Given:Radiusof the sphere (r) = 5.6 cm Surface area of a sphere= 4πr² = (4 × 22/7 × 5.6 × 5.6) =394.24cm²

Assume t = - F, unless stated otherFind the surface area of a sphere of radius: 10.5 cm(i) 5.6 cm

Answer»

(i) Radius of the sphere (r) = 10.5cm

Surface area of a sphere= 4πr²

= (4 × 22/7 × 10.5 × 10.5)

= 1386 cm² ii)Given:Radiusof the sphere (r) = 5.6 cm

Surface area of a sphere= 4πr²

= (4 × 22/7 × 5.6 × 5.6)

=394.24cm²