Question

what is the perimeter? 30 mm 18 mm 24 mm millimeters submit

Explanation:

Step1: Recall perimeter formula

The perimeter $P$ of a triangle is the sum of the lengths of its sides. Let the side - lengths be $a = 18$ mm, $b = 24$ mm, and $c = 30$ mm. The formula is $P=a + b + c$.

Step2: Calculate the sum

$P=18+24 + 30$.
$P = 72$

Answer:

72