Question

Find the curved surface area of a right circular cone of volume 12936 cm^3 and base diameter 42 CM

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

2310cm2

Step-by-step explanation:

Here the formula is pie rl for cone

So, l= root(r^2+h^2)

Given=

• R =21cm
• L =?
• V =1283cm3

V=pie r^2 *h/3

12936 =462hcm2

Now the hight is 28 cm

L =35cm

Csa =22/7 *21*35

Csa = 2310 cm2