Question

Find the ratio of the csa of two cones if diameter of teir bases are equal

Answer 1

Answer:

diameter of two cone = 14

radius = 7 cm

length of cone 1 = 21 cm

length of cone 2 = 7cm

CSA of cone 1 = π rl

= 22/7 × 7 × 21 = 22× 21

= 462 cm ^2

CSA of cone 2 = πrl

= 22/7 × 7 × 7

= 154 cm ^ 2

ratio = CSA of cone 1

CSA of cone 2

ratio = 462

154

1:3

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