Mathematics, 05.08.2019 00:30, ndurairajownkpq

The surface area of a cone is approximated by the polynomial 3.14r squared + 3.14rl where r is the radius and l is the slant height. find the approximate surface area of a cone when l=5cm and r=3cm

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The surface area of a cone is approximated by the polynomial 3.14r squared + 3.14rl where r is the r...