There are two cones. The curved surface area of one is twice that of the other. The slant height of the later is twice that of the former. Find the ratio of their radii.
We have,
A1 = 2A2 = πr1l1= 2(πr2l2)
l2 = 2l1
r1l1=2r2×2l1 , = r1 = 4r2
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There are two cones. The curved surface area of one is twice that of the other. The slant height of the later is twice that of the former. Find the ratio of their radii.
We have,
A1 = 2A2 = πr1l1= 2(πr2l2)
l2 = 2l1
r1l1=2r2×2l1 , = r1 = 4r2