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Ankit Malik

· started a discussion

· 1 Months ago

frustum (Question: 293516.0 )

formula for csa = pai*r1+r2*(r1-r2)2+h2
isnt it

Question:

The slant height of the frustum of a come is 4 cm and the circumference of its circular ends are 18 cm and 6 cm, find curved surface area of the frustum.

Options:
A)

64 cm2

B)

36 cm2

C)

25 cm2

D)

48 cm2

Solution:

Ans: (d)

  

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