Question

Jorge is designing a square poster. the poster has an area of 169in^2.what is the length of each side?

Answer 1

$Let \: the \: side \: of \: the \: poster \: be \: x\: (x>0) \\ \Rightarrow {x}^{2} = 169\Leftrightarrow x = 13 \\ \Rightarrow B. \: 13$

Answer 2

Answer:

B. 13 inches

Step-by-step explanation:

We are given that,

The area of the square poster = 169 in²

it is required to find the length of the sides.

Now, we know,

Area of a square = $(Side)^2$

i.e. $169=(Side)^2$

i.e. Side = ± 13 inches

As the length of the square cannot be negative.

Thus, the length of each side is 13 inches.

So, option B is correct.