Question

the radius of a cone is 7cm and area curved surface is 176cm².find the slant height​

Answer 1

Answer:

8 cm

Step-by-step explanation:

$\huge{ \bold{\textit{Given : - }}}$

$\xrightarrow{}radius \: of \: cone,r \: = 7 \: cm$

$\xrightarrow{}curved \: surface \: area \: = 176 \: {cm}^{2}$

We know that,

$curved \: surface \: area \: o f \: cone \: = \pi rl$

$\implies \: \pi rl = 176$

$\implies \frac{22}{ \not7} \times \not7 \times l = 176$

$\implies \: l = \frac{176}{22}$

$\implies \: \boxed{l = 8 \: cm}$

Hence the slant height of cone is 8 cm