A closed cylindrical tank of radius 7m and height 3 cm is made from a sheet of metal. how much sheet of metal is required?
srilu123:
is it 3m or 3cm
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Answer:
3093200 cm²
Step-by-step explanation:
r = 7 × 100 = 700
TSA = 2πr( h + r )
=2 × π × 700(3 + 700)
= 2 × π × 700 × 703
=984200π
=3093200 cm²
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