find surface area of a cone in terms of its radius when height is equal to radius
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Answer:
HOPE THIS BRING A SMILE IN YOUR FACE
Step-by-step explanation:
r=h
l^2=r^2+h^2
l^2=r^2+r^2
l^2=2r^2
l=√2r^2
l=r√2
Surface area of cone = 22/7×r(l+r)
=22/7×r(r√2+r)
=22/7×r×r(√2+1)
=22/7×r^2(√2+1)
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