Match the correct formula — task. Mathematics State Board, Class 10.

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Answer variants:

$\pi r (l + r)$

$l = \sqrt{r^2 + h^2}$

$2 \pi r (l + r)$

$l^2 = \sqrt{r^2 + h^2}$

1. If

$r$ be the radius and

$l$ be the slant height of the right circular cone, then the total surface area

$=$

2. If

$r$ be the radius and

$h$ be the height, then the slant height

$l$ of the right circular cone

$=$

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