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Question

# The volume of a conical shape oil dispenser of height 8 in and radius 3 in as shown is (round off to 2 decimal places) [Take π=227]

A
75.43 cu in
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B
150.92 cu in
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C
85.49 cu in
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D
54.9 cu in
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Solution

## The correct option is A 75.43 cu inLet the height and radius of the the cone be represented by 'h' and 'r' respectively. so, Height of the cone (h) = 8 in Radius of cone (r) = 3 in We know, Volume of a cone =13πr2h =13×227×32×8 =158421 =75.43 cu ft ∴ The volume of the conical shaped oil dispenser is 75.43 cu in

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