Question

The length of a side of an equilateral triangle is x-4.5 .

Create a model of an equilateral triangle, making sure to label the lengths of each side.

Add images

Answer 1

Equilateral triangle means all sides have equal length.

Perimeter

As a sum: (x-4.5)+(x-4.5)+(x-4.5)

As a product: 3 * (x-4.5)

They are equivalent because 3 times a number is just the sum of three of the number.

Explanation: