Slant heights =13 cm and surface is 900 cm square .find diameter of base of cone
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l=13 cm
csa=900cm^2
d=2r
c.s.a=22/7×r×l
900=22/7×r×13
r=900×7/22×13
r=18900/286
r=66apx
d=132 cm
csa=900cm^2
d=2r
c.s.a=22/7×r×l
900=22/7×r×13
r=900×7/22×13
r=18900/286
r=66apx
d=132 cm
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