Question

A square floor has an area of 480 square feet. Kristin wants to put molding around the entire perimeter of the floor.

Approximately how much molding does she need?

A. 720 ft.
B. 120 ft.
C. 90 ft.
D. 88 ft.

Answer 1

Alright a square we know has 4 equal sides..

The area of a square...is Length x Width... and we know that to be 480

So

L x W = 480

We know length and width are equal...so we'll just put

L^2 = 480

so

L = √480

L = 21.91 around there...

So if that is true..then each side of this triangle will be approximately 21.91 feet...

There are 4 sides so

4 x 21.91 = 87.64 feet in the perimeter

That is approximately 88 so it looks like your answer will be D

Answer 2

thank you so much

Answer 3

No problem!