Question

Rubber balls with diameter 60 cm have to be painted.

What will be the total area to be painted, if there are 5 such balls?

Answer 1

Answer:

471.425

Step-by-step explanation:

area of a ball=22/7×60/2 =660/7=94.285 area of 5such ball=94.285×5=471.425

Answer 2

Answer:

firstly find surface area of 1 ball

then multiply it to 5

surface area of 1 spherical ball

= 4 π r³. here r=30

= 4 x 3.14 x 30 x 30 x 30

= 339120cm²

the total surface area of 5 such balls are

= 1695600cm²