The radii of circular ends of a bucket of height 24 cm are 15cm and 5cm . Find the area of its curved surface.
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the area of its curved surface is 1800
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Answer:
1634.3 cm² .
Step-by-step explanation:
Let radii be R and r .
It is given R = 15 cm , r = 5 cm and h = 24 cm
We know slant height :
l = [ √ h² + ( R - r )² ]
l = √ 24² + 10²
l = 26 cm .
Now ,
C.S.A. = π ( R + r ) l
= 3.14 × 20 × 26 cm²
= 1634.3 cm² .
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