Find the total surface area of cone having base diameter 30 cm and height 40 cm
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Step-by-step explanation:
diameter of cone=30cm
radius=30/2=15cm
height=40cm
total surface area of cone = πr(l+r)
=22/7*15(40+15)
=22/7"15*55
=22/7*825
=2592cm²
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