"Question 1 The circumference of the base of cylindrical vessel is 132 cm and its height is 25 cm. How many litres of water can it hold? (1000 cm^3 = 1l)
Class 9 - Math - Surface Areas and Volumes Page 230"
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VOLUME:
The space occupied by an object solid body is called the volume of the particular object solid body volume is always measured in cubic unit.
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Solution:
Let the radius of the cylindrical vessel be r.
Given:
Height (h) of vessel = 25 cm
Circumference of base= 2πr
Circumference of base = 132 cm
2πr = 132 cm
2×22/7×r= 132
r=(132×7)/22×2= 21 cm
Volume of cylinder= πr²h
=22/7× 21×21×25
= 22×3×21×25
= 34650 cm³
= 34650/1000 L
= 34.65L
[ 1 cm³= 1/1000 L]
Hence, vessel can hold 34.65 litres of water.
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Hope this will help you....
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