curved surface area of a cone of radius 4 cm is 20π cm square. Find total surface area in terms of π
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Curved surface area is given as(πrl)= 20π
r = 4 cm
So the area of the bottom part =π r^2
=16 π
The total surface area of a cone = curved surface area + The bottom surface area.
20π + 16π
36 π
Hope it helped.
r = 4 cm
So the area of the bottom part =π r^2
=16 π
The total surface area of a cone = curved surface area + The bottom surface area.
20π + 16π
36 π
Hope it helped.
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3
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