Question

The base radius and slant height of a cone are 9 cm and 15 cm what is the radius

Answer 1

Step-by-step explanation:

We know that the total surface area S of a right circular cylinder of radius r and slant height l is given by

S=πr

2

+πrl=πr(r+l)

Here, r=12mandl=9m

∴S={

7

22

×12×(12+9)}

2

=792m

2

Answer 2

Answer:

The radius of a cone is 9cm

because base radius and radius are both same not different

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