Question

radius and slant height of cone is 10cm and 25cm find tsa ​

Answer 1

Total surface area = 1100 cm^2

Step-by-step explanation:

$radius \: of \: cone(r) = 10 \: cm \\ \\ slant \: height \: of \: cone(l) = 25 \: cm \\ \\ total \: surface \: area \: of \: cone = \pi \: r(r + l) \\ \\ = = > \: \: \: = \frac{22}{7} \times 10(10 + 25) \\ \\ = = > \: \: \: = \frac{22}{7} \times 10 \times 35 \\ \\ = = > \: \: \: = \frac{7700}{7} = 1100 \: {cm}^{2}$

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