Question

write two expressions for the perimeter of the figure.
7x
9
18
19x
note: the figure is not drawn to scale.
(a) use all four side lengths.
perimeter = □ + □ + □ + □
(b) simplify the expression from part (a).
perimeter = □

Explanation:

Step1: List all side lengths

Perimeter = $9 + 7x + 18 + 19x$

Step2: Combine constant terms

$9 + 18 = 27$

Step3: Combine variable terms

$7x + 19x = 26x$

Step4: Combine simplified terms

Perimeter = $26x + 27$

Answer:

(a) perimeter = $9 + 7x + 18 + 19x$
(b) perimeter = $26x + 27$