Question

the surface area of sphere is 616 CM square then its radius is

Answer 1

$4\pi \: r { }^{2} = 616$
$4 \times 22 \div 7 \times \: r {}^{2} = 616$
$r { }^{2} = 616 \times 7 \div 88$
$r {}^{2} = 49$
$r = 7$

Answer 2

surface area of sphere = 4$\pi$$r^2 616cm = 4[tex] \pi$$r^2 616cm = 4 x 22/7 x r^2 616 x 7/88 = r^2 49 = r^2 [tex] \sqrt{49}$ = r
7cm =r