Question

Select the correct answer.

Sides of three square rooms measure 13 feet each, and sides of two square rooms measure 15 feet each. Which expression shows the total area of
these five rooms?

Answer 1

What is a fraction?

A fraction is a fragment of a whole number, used to define parts of a whole. The whole can be a whole object, or many different objects. The number at the top of the line is called the numerator, whereas the bottom is called the denominator.

We know that a square has 4 sides of the same length, meaning that the length and the width are the same length. You can solve for the area of the first three rooms with a length of 13 feet using an equation like this:

(13 × 13) × 3

Now, for the other two rooms with the length of 15 feet:

(15 × 15) × 2

Simply add them together.

([13 × 13] × 3) + ([15 × 15] × 2)

Simplified, the expression would look like this:

(169 × 3) + (225 × 2) = 957

Therefore, the expression that shows the total area of these five rooms would look like this: ([13 × 13] × 3) + ([15 × 15] × 2), or it being simplified would look like this: (169 × 3) + (225 × 2) = 957