Question

The diameters of two cones are equal.If their slant height are in the ratio 5:4.Find the ratio of their curved surface area.
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Answer 1

The ratio of their curved surface area is 5 : 4

Step-by-step explanation:

given : d1 = d2

L1 : L2 = 5 : 4

curved surface area of cone = π×r×L

so the ratio of their curved surface area is ,

  ⇒   π r1 L1  :   π r2 L2

  ⇒  L1 : L2

     = 5 : 4

Answer 2

Answer:

its is 5:4

hope it helps you