4. The circumference of the base of a circular tank is 11 m. If the height of the tank is 3 m, find
its curved surface area and the total surface are
.
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first its radius.
2×pie×r=11m
=>2×22/7×r=11m
=>r=7/4
CSA=2×PIE×r×h
=>2×22/7×7/4×3=33m
=>CSA=33m
TSA=2×pie×r(r+h)
=>2×22/7×7/4(7/4+3)
=>77×19/4=1463/9
TSA=162.55(approx)
2×pie×r=11m
=>2×22/7×r=11m
=>r=7/4
CSA=2×PIE×r×h
=>2×22/7×7/4×3=33m
=>CSA=33m
TSA=2×pie×r(r+h)
=>2×22/7×7/4(7/4+3)
=>77×19/4=1463/9
TSA=162.55(approx)
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