a closed circular cylinder has diameter 20 cm and height 30 cm. find the total surface area of the cylinder.
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Diameter of cylinder = 20 cm
so the radius = 20/2 = 10 cm
Height = 30cm
Total surface area of the cylinder =2πr(h+r)
= 2 × 22/7 ×10 (30+10)
= 440/7 × 40
= 17600/7
=2514.28 cm²
so the radius = 20/2 = 10 cm
Height = 30cm
Total surface area of the cylinder =2πr(h+r)
= 2 × 22/7 ×10 (30+10)
= 440/7 × 40
= 17600/7
=2514.28 cm²
Anonymous:
remerciements!!
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Français est une langue belle
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oh, siddevkota u know french !??
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as in "learning"
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