Question

find the volume of the sphere whose surface area is 616 sq. m.

Answer 1

Answer:

Step-by-step explanation:

total surface area= 616

4 \pi  r^{2} =616 \\ 
 \pi  r^{2} =616/4=154
 \\  r^{2} =\frac{154}{ \pi }  \\ 
 r^{2} =49 \\ 
r=7 cm

volume of the sphere= \frac{4}{3}  \pi r^{3}  \\  \\ 
 \frac{4}{3} * \frac{22}{7} *49*7 \\ 
=1437.33


Answer 2

Answer:

4πr^2=616

r^2=616/4π=616×7/22×4

r^2=49

r=7 m

Vol. of sphere=(4/3)πr^3

=4×22×7×7×7/3×7

=4312/3 m^3