Question

surface area of sphere having radius 7cm (π=22/7)​

Answer 1

Step-by-step explanation:

surface area of sphere =

$4\pi {r}^{2}$

4*22/7*7*7

615.75

Answer 2

Answer:

Given r= 7cm

Surface area of sphere =

$4\pi \: r {}^{2}$

= 4*22/7 *7*7 cm2

= 4*22*7 cm2

= 616 cm2.