find the height of the solid circular cylinder of total surface area 660cm sq and radius 5cm
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T.S.A of cylinder = 2pi×rh + 2pi×r^2
660 = 2×22/7 ×5×h + 2×22/7×5×5
660 = 44/7×5 (h+5)
h+5 =660×7/220
h+5 =3×7
h = 21-5
h=16cm
hence , height of cylinder is 16cm
660 = 2×22/7 ×5×h + 2×22/7×5×5
660 = 44/7×5 (h+5)
h+5 =660×7/220
h+5 =3×7
h = 21-5
h=16cm
hence , height of cylinder is 16cm
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