Question

lesson 5: quadrilaterals
quadrilaterals and perimeter formulas
which of the following is the perimeter of the parallelogram?
a. 108 m
b. 180 m
c. 27 m
d. 54 m
check answer

Explanation:

Step1: Recall perimeter formula for parallelogram

The perimeter $P$ of a parallelogram with adjacent - side lengths $a$ and $b$ is $P = 2(a + b)$. Here, $a=15$ m and $b = 12$ m.

Step2: Substitute values into formula

$P=2(15 + 12)$. First, calculate the sum inside the parentheses: $15+12 = 27$ m. Then, multiply by 2: $P=2\times27=54$ m.

Answer:

d. 54 m