Question

1.3.PS-17

The area of a square poster is 30 in.2. Find the length of

of an inch.

in.

The length of one side of the poster is

(Round to the nearest tenth as needed.)

Answer 1

Answer:

5.48 inches

Step-by-step explanation:

Given that the poster is in the shape of a square.

Area of the square poster = 30 $in^2$

To find:

The length of side of the poster = ?

Solution:

First of all, let us have a look at the formula for area of a square.

Let the side of square = $x$ inches

Formula:

$Area =Side \times Side$

Putting the value of the side:

$Area = x\times x$

Putting the value of Area as given in the question statement:

$30 = x^2\\\Rightarrow x =\sqrt{30}\\\Rightarrow \bold{x \approx 5.48\ inches}$