How to find the perimeter of an acute / obtuse triangle

Practice Questions

SSAT Upper Level Quantitative (Math) › How to find the perimeter of an acute / obtuse triangle

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1

A triangle has side lengths , , and . What is the perimeter of this triangle?

2

Bill has a triangular garden that he needs to fence. The garden has side lengths of $\text{9 feet, 10 feet, and 12 feet}$ . In feet, how much fencing will Bill need?

3

In terms of , find the perimeter of a triangle with side lengths of $\text{12x, 4x, x-2}$ .

4

The side lengths of a triangle are $2x, 8x, \text{ and } 4x$ . Find the perimeter of the triangle.

5

In terms of , find the perimeter of a triangle with side lengths $\text{5a-2, 3a, 9a-9}$ .

6

In terms of , find the perimeter of a triangle with side lengths of $\text{b+6, b-8, 4b-2}$ .

7

The side lengths of a triangle, in inches, are . Find the perimeter of this triangle.

8

In terms of , find the perimeter of a triangle with side lengths of $\text{3c-9, -c+10, and 2c-1}$ .

9

Find the perimeter of a triangle with side lengths of .

10

Find the perimeter of a triangle with side lengths $45, 40,\text{ and }35$ .

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