Question

An art class is making a mural for their school which has a triangle drawn in the middle. The

length of the bottom of the triangle is x. Another side is 2 more than three times the length of the
bottom of the triangle. The last side is 12 more than the bottom of the triangle. Write and simplify an
expression for the perimeter of the triangle.
What is the expression for the perimeter of the triangle?

Answer 1

Answer: perimeter = 6x+15

EXPLANATION

The perimeter of the triangle is the distance around the triangle.

We need to apply our ability to convert word problems in to mathematical expressions.

we were told that the bottom of the triangle is units.

From the diagram perimeter

Four times the length of the bottom will be .

12 more than 4 times the bottom will be

Hence another side of the triangle is

Finally we were told that the last side is 3 more than the bottom, that will be

Explanation: