Find the base area $A_{B}$ of a cone if radius $r = 13 cm$ and slant height $l = 31 cm$ .

Answer

$169 π cm^{2}$

Explanation

To find base area $A B$ use formula:

A B = r^{2} \cdot π

After substituting $r = 13 cm$ we have:

A B = (13 cm)^{2} \cdot π

A B = 169 cm^{2} \cdot π

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Find the base area AB​ of a cone if radius r=13cm and slant height l=31cm.

169πcm2

Find the base area $A_{B}$ of a cone if radius $r = 13 cm$ and slant height $l = 31 cm$ .

$169 π cm^{2}$