Question

Need help with these

Answer 1

Answer:

2) a. radius of cone:

$\frac{1}{3} \pi \: r {}^{2} h = 7.77$

$\frac{1}{3} ( \frac{22}{7} )( {r}^{2} )(4) = 7.77$

$\frac{88}{21} ( {r}^{2} ) = 7.77$

${r}^{2} = 7.77 \div \frac{88}{21}$

${r}^{2} = \frac{16317}{8800}$

$r = \sqrt{ \frac{16317}{8800} }$

$r = 1.36 \: ft$