Practicing Success
The diameter of the base and the slant height of a right circular cone are 10 cm and 16 cm, respectively. Find its total surface area. [Use $π =\frac{22}{7}]$ |
$\frac{5720}{7}$ cm2 $\frac{720}{7}$ cm2 330 cm2 $\frac{1760}{7}$ cm2 |
330 cm2 |
We know that, Formula of Total surface area of a cone = πr(l + r) We have, Diameter = 10 cm Then the radius of the cone = \(\frac{ 10}{2}\) = 5 cm Total surface area of cone = πr(l + r) = 5 × \(\frac{22}{7}\)× (16 + 5) = 330 cm² |