the diameter of a right circular cone is 14 m and its slant height is 10 m find its CSA, TSA AND VOLUME
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Answer:
1)csa
Given, Diameter d=14cm
∴r=214=7cm,l=10cm
Curved surface area of a cone=πrl=722×7cm×10cm=220cm2.
tsa
tsa=2πr(r+h)
=2×22/7×14/2(14/2+10)
=2×22/7×7(7+10)
=2×22/7×7(17)
=44(17)
=748 cm²
volume
volume=πr2h
=22/7×7(2×10)
=22/7×7(20)
=22(20)
=440cm²
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