1.
The outer diameter of a hollow metallic ball is 10 cm.
& its thickness is 1 cm. Volume of this ball is :
Answers
Answered by
15
Answer:
381.90 cm³
Step-by-step explanation:
Given:
Outer diameter = 10 cm
Thickness = 1 cm
=> Inner Diameter = 10 - 1 = 9 cm
Inner Radius = 9/2 = 4.5 cm.
Thus volume of hollow sphere = 4/3πr³ = 4/3 * 22/7 * (4.5)³
=381.90 cm2
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