Question

directions: read each question, and choose the best answer.

1. what is the perimeter of the polygon?

a. 55 cm
b. 47 cm
c. 46 cm
d. 44 cm

Explanation:

Step1: Recall the definition of perimeter

The perimeter of a polygon is the sum of the lengths of all its sides.

Step2: Add the lengths of the sides

We have side lengths \(8\mathrm{cm}\), \(11\mathrm{cm}\), \(9\mathrm{cm}\), \(10\mathrm{cm}\), and \(17\mathrm{cm}\).

$$P = 8 + 11+9 + 10+17$$

$$P=(8 + 11)+(9 + 10)+17$$

$$P = 19+19 + 17$$

$$P=38+17$$

$$P = 55\mathrm{cm}$$

Answer:

A. \(55\mathrm{cm}\)