Question

the radius of sphere is 3.5 cm. find its surface area and volume

Answer 1

r=3.5cm
area=4pi×r^2
4×22/7×3.5×3.5=154cm square.

volume= 4/3pi×r^3
4/3×22/7×3.5×3.5×3.5=179.66cm cube.

hope it helps you.

Answer 2

Answer:

surface area = $153.94 cm^{2}$ ; volume = $179.59 cm^{3}$

Step-by-step explanation:

surface area = $4\pi r^{2}$

                     = 4*22/7*3.5*3.5

                     = $153.94 cm^{2}$

volume = $4/3\pi r ^{2}$

             = 4/3*22/7*3.5*3.5

             = $179.59 cm^{3}$