Question

find the volume of the cylinder given the area of it's base is 154 cm square and height 8 cm

Answer 1

Hii,

Height of cylinder = 8cm
area of base = πr²
154 = 22/7×r²
r²= 154×7/22
r²=49
r= ✓49= 7cm
Therefore,
Volume of cylinder = πr²h = 22/7×7×7×8
= 22×7×8 = 154×8 = 1232cm³..
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Answer 2

Height 'h'=8cm
area of base=154cm2
πr2=154
22/7×r2=154
r2=154×7/22
r2=49
r=√49
r=7
Volume of cylinder=πr2h
22/7×7×7×8
=22×7×8
1232cm3