Math, asked by suchiyashloke, 2 months ago

what is the T. S. A of a cone having radius and height 2l

Answers

Answered by suraj3rai

0

Step-by-step explanation:

given

slant height = 21

radius = r/2

total surface area of the cone = 2r'radius(radius+slant height)

=21*r/2[r/2+21]

=Tir{r+41/2 sq units

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