Question

regular polygons have congruent sides and congruent angles. the regular octagon has a perimeter represented by the expression shown.
perimeter = 48y - 40
write an expression to represent the length of one side of the octagon.
enter the correct answer in the box.
show hints

Explanation:

Step1: Recall octagon side count

A regular octagon has 8 equal sides.

Step2: Divide perimeter by 8

To find one side length, divide the total perimeter by 8:
$\frac{48y - 40}{8} = \frac{48y}{8} - \frac{40}{8}$

Step3: Simplify each term

Calculate the division for each term:
$6y - 5$

Answer:

$6y - 5$