Question

If two Cones radius is equal and ratio of
slant height is 5:3. then find the ratio of
Curved Surface area of cones.
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Answer 1

Step-by-step explanation:

RTio is 25 ratio 9

hope it helps you

Answer 2

Slant height of 1st cone= l

Slant height of 2nd cone=L

Their ratios are= l/L =5:3

Therefore L=3×l/5.............(1)

CSA of 1st cone = πrl

CSA of 2nd cone =πrL

Since π and radius are equal and common

Therefore ,. l/L is remaining

= l/L....(2)

By substituting 1 in 2 , we get

=l/3×l/5

There fore ,= 5/3 so the curved surface area of two cones are also in== 5:3