the diameter of a spherical ball is 21cm .How much leather is required to prepare 5 such balls?
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11
Solution:-
Given : Diameter of the spherical ball = 21 cm
So, the radius = 21/2 = 10.5 cm
Surface area of the spherical ball = 4πr²
= 4*22/7*10.5*10.5
= 1386 sq cm
So, the leather required for making one spherical ball is 1386 sq cm.
Therefore, for making 5 such spherical balls required leather will be
= 1386 × 5
= 6930 sq cm
Answer.
Given : Diameter of the spherical ball = 21 cm
So, the radius = 21/2 = 10.5 cm
Surface area of the spherical ball = 4πr²
= 4*22/7*10.5*10.5
= 1386 sq cm
So, the leather required for making one spherical ball is 1386 sq cm.
Therefore, for making 5 such spherical balls required leather will be
= 1386 × 5
= 6930 sq cm
Answer.
Answered by
0
Step-by-step explanation:
Answer is 6930.....
Hope it helps u
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