Solving word problems lengths of a triangle - Online Tutor - Free Math Videos

The video tutorial explains how to solve a word problem involving the perimeter of a triangle. The problem states that the perimeter is 86 inches, with the largest side being 4 inches less than twice the smallest side, and the third side being 10 inches longer than the smallest side. The teacher guides students through reading the problem, identifying what is being asked, defining a variable for the smallest side, setting up an equation, and solving it to find the lengths of all sides. The tutorial emphasizes the importance of understanding the problem, defining variables, and following systematic steps to reach a solution.

What is the first step in solving a word problem according to the video?

• Write down the equation

• Assign variables to unknowns

• Read through the entire problem

• Solve for the unknowns

How many sides does the triangle have in the problem discussed?

• Two

• Five

• Four

• Three

What is the relationship between the largest side and the smallest side?

• The largest side is 10 inches more than the smallest side

• The largest side is 4 inches less than twice the smallest side

• The largest side is 4 inches more than twice the smallest side

• The largest side is twice the smallest side

What is the equation used to find the perimeter of the triangle?

• 2X + 4 + X + 10 = 86

• 2X - 4 + X + X + 10 = 86

• 2X + 4 + X + X + 10 = 86

• 2X - 4 + X + 10 = 86

What is the length of the smallest side of the triangle?

• 18 inches

• 20 inches

• 22 inches

• 24 inches

What is the length of the largest side of the triangle?

• 34 inches

• 38 inches

• 32 inches

• 36 inches

What is the length of the third side of the triangle?

• 30 inches

• 28 inches

• 34 inches

• 32 inches