Question

find the volume and surface area of a sphere of radius 2.1 cm π=22/7​

Answer 1

Answer:

surface area = 55.44 cm ^2 & Volume = 38.808cm ^3

Step-by-step explanation:

4$\pi$r^2 = 4 x 22/7 x 2.1 x 2.1

=88 x 0.63

=55.44cm^2

4/3$\pi$r^2 = 4/3 x 22/7 x 2.1 x 2.1 x 2.1

= 88 x 0.1 x 4.41

= 38.808cm^3

Answer 2

Answer:

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