Question

A cube with side 7m is melted to form a cone of height 11m.Find radius of the base and lateral surface of the cone.

Answer 1

Radius of the base and lateral surface of the cone is $\bold{11502.85 \mathrm{cm}^{2}}$

Explanation:

Given:  

A cube with side 7m is melted to form a cone of height 11m. Find radius of the base and lateral surface of the cone.

Solution:  

Volume of the cube = volume of the cone

$343=\frac{1}{3} \pi r^{2} \times 11$

r = 60.01

$\text { Length }=\sqrt{r \times r+(h \times h)}$

= 61

$\mathrm{LSA}=\pi \times 60.01 \times 61=11502.85 \mathrm{cm}^{2}$

Learn more about lateral surface

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Answer 2

$<font color =“orange”>$

${ \huge \bf{ \mid{ \overline{ \underline{Answer}}} \mid}}$

$\huge\underline\mathrm\orange{11502.85cm2}$

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