Calculate the perimeter — task. Assessments, Math TN.

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A square of side

$s=$ 3

$cm$ is cut from the corner of a triangle of sides

$a=$ 21

$cm$ ,

$b=$ 15

$cm$ and

$c=$ 27

$cm$ . Find the perimeter of the given shape.

$69 \ cm$
$90 \ cm$
$45 \ cm$
$64 \ cm$

$1$

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