Lesson: Perimeter of a Triangle
In this lesson, we will learn how to find the perimeter of a triangle as a value and as an algebraic expression by adding its side lengths.
Sample Question Videos
Worksheet: 25 Questions • 2 Videos
is a triangle where , and . Find the perimeter of the triangle giving the answer to the nearest centimetre.
is a triangle, where cm, cm, and the perimeter is 124 cm. Find the lengths of and giving the answers to the nearest centimetre.
The perimeter of a triangle is given by cm. The lengths of two of its sides are cm and cm. Express the length of the third side in terms of .