Question

2. Find the surface area of a sphere of diameter
(1) 14 cm (i) 21 cm​

Answer 1

Answer:

surface area of sphere is 4πr²

Step-by-step explanation:

i) 4*22/7* 14/2 *14/2= 616 cm²

ii) 4*22/7*21/2*21/2 = 1386 cm²