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Question

Diameter and slant height of a cone are 14 m and 25 m respectively. Find it total surface area.

Solution
Verified by Toppr

Given, the base diameter of cone =14 m
Radius (r)=145=7 m
Slant height (d)=25 m
Total surface area of the cone =πr(1+r)
=227×7×(25+7)

=227×7×32

=22×32
=744 m2
Hence, total surface area of cone 704 m2

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