Question

Radius and slant height are in the ratio 4:7 curved surface area of a cone is 792 cm sq. Find height

Answer 1

radius = 4x
slant height = 7x
CSA = 792
πrl =792
22/7 × 4x × 7x = 792
88x^2 = 792
x^2 = 9
x = 3

slant height = 7x = 7× 3 = 21cm

Answer 2

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refer above attachment