Question

b) The diameter of a sold spherical ball is 35 cm, find its surface area and the volume​

Answer 1

Answer:

Step-by-step explanation:

Given:

r=3.5cm

To find:

Surface area and volume of sphere

Solution:

Surface area of sphere = 4π r^2

=(4×22×3.5×3.5)/7

-88×12.25/7

=154cm^2

Volume of the sphere: 4/3―r^3

= 4/3 ×22/7×3.5×3.5×3.5

=3773/21

=179.6cm^2