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mariarad [96]
3 years ago
14

Need help with these

Mathematics
1 answer:
max2010maxim [7]3 years ago
8 0

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

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