Drum has a radius of 10 cm and depth of 18 cm find the surface area of the drum
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Answer:
1760cm²
Step-by-step explanation:
r = 10cm
h =18cm
Considering the drum as a cylinder with both side closed
surface area is
S = 2πr² + 2πrh
S = 2πr(r+h)
=2×π×10(10+18)
=20π×28
=560π
=1759.6 or 1760 cm²
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