the radius and slant height of a cone are in the ratio 4:7. If its CSA is 792cm square,find its radius
Answers
Answered by
1
radius = 4x
slant height = 7x
CSA = πrl = 792
22/7 × 4x × 7x = 792
88x^2 = 792
x^2 = 9
x = 3
radius = 4x = 4×3 = 12 cm.
slant height = 7x
CSA = πrl = 792
22/7 × 4x × 7x = 792
88x^2 = 792
x^2 = 9
x = 3
radius = 4x = 4×3 = 12 cm.
Similar questions