Question

plz friends answer these questions it's urgent please
I'm crying ​

Answer 1

Answer:

SORRY BRO I CANNOT UNDERSTAND THIS IMAGE..

Answer 2

(1) answer is = r=3.72 (2 d. p)

Volumes of sphere has eqn. Given in question...

(4/3) (π*r^3) =216....

(π*r^3) =162...

r^3 =162/π

r=(162/π) (^1/3)

then, u get ur answer..

(3) answer is..,r=7.00141 cm...=7 cm...

A=4πr2 , then...,

r=1/2√A/π=1/2.√616√π

=7.00141 cm

second answer is A=1385.44 cm2