If csa of a cone=188.4 cm square, height of the cone = 8cm.find its radius
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Answer:2.73861278753
Step-by-step explanation:
csa = πrl
l = √r²+h²
l = √r²+64
A.T.P.
188.4 = π × r × √r²+64
59.97 = r×r×8
8r² = 59.97
r² = 7.5
= 2.74cm(ans)
hope it helps you!!
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