1 Answer

Bpavlov · Answer 1 · 2022-10-04T18:09:05+0000

Answer:
$160.28\ cm^2$

Explanation:

Given

diameter of cone
$d=12\ cm$

radius is
$r=(d)/(2)=6\ cm$

The slant height of the cone
$l=85\ mm\approx 8.5\ cm$

The surface area of a cone is

$\Rightarrow A=\pi rl$

Substitute the value

$\Rightarrow A=(22)/(7)* 6* 8.5=160.28\ cm^2$

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