Question: The total surface of a solid cone is 2 0 0 c m 2 and its slant is 1 2 c m . To determine

The total surface of a solid cone is 200cm2 and its slant is 12cm. To determine the base diameter, r, we can use the polynomial:
200-12r-r2=0
Find the roots of this polynomial, MATLAB coding.
The total surface of a solid cone is 2 0 0 c m 2

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