Question

-find the slant height of the frustum whose height is 12cm and the radii are 7 cm and 2cm

Answer 1

HELLO DEAR,

WE HAVE R = 2, r1 = 1 cm AND h = 14 cm



VOLUME OF FRUSTUM

$\frac{1}{3} \pi h( {r}^{2} + { r_{1} }^{2} + r \times _{1}) \\ = > \frac{1}{3} \times \frac{22}{7} \times 14 \times ( {2}^{2} + {?}^{2} + 2) \\ = > \frac{1}{3} \times \frac{22}{7} \times 14 \times 7 \\ = > 102 \frac{2}{3} c {m}^{3}$

I HOPE ITS HELP YOU DEAR,
THANKS