Word Problems for Finding Lengths of a Triangle

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Taught by mrbrianmclogan
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Lesson Summary:

In this lesson, we learn how to solve word problems involving the lengths of a triangle. The first step is to read the problem in its entirety and determine what the question is asking. Next, we choose a variable to represent the smallest side of the triangle and define the other sides in terms of that variable. Then, we write an equation using the perimeter of the triangle and solve for the variable. Finally, we use the value of the variable to find the lengths of all sides of the triangle. The key takeaway is to approach word problems systematically and use only one variable to solve them.

Lesson Description:

Solving word problems lengths of a triangle

I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exactly how to solve math problems step by step. The problems are done in real time and in front of a regular classroom. These videos are intended to help you learn how to solve math problems, review how to solve a math problems, study for a test, or finish your homework. I post all of my videos on YouTube, but if you are looking for other ways to interact with me and my videos you can follow me on the following pages through My Blog, Twitter, or Facebook.

Questions answered by this video:
  • How do I solve word problems?
  • The perimeter of a triangle is 86 inches. The largest side is four inches less than twice the smallest side. The third side is 10 inches longer than the smallest side. What is the length of each side?
  • Staff Review

    • Currently 4.0/5 Stars.
    In this lesson, the teacher shows how to solve a problem where you have to find the lengths of sides of a triangle. This word problem gives you the perimeter of the triangle, and it gives you information on how the lengths of the sides of the triangle relate to one another.