Triangle Angle Word Problem 1

Sick of ads?‚Äč Sign up for MathVids Premium
Taught by YourMathGal
  • Currently 4.0/5 Stars.
5822 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Description:

Sum of angles in a triangle, isosceles triangle, right triangle word problems involving angles in a triangle.

More free YouTube videos by Julie Harland are organized at

Questions answered by this video:
  • What is the sum of the angles in a triangle?
  • What is an isosceles triangle?
  • If two angles in a triangle are 40 degrees and 60 degrees, what is the measure of the third angle?
  • If two angles of a triangle measure 53 degrees and 68 degrees, what is the measure of the third angle?
  • If one angle of an isosceles triangle is 15 degrees less than one of the equal angles, what are the measures of the three angles?
  • Why do angles in a triangle add up to 180 degrees?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson takes what you know about angles and finding values of variables in angles, and uses these ideas to find the measures of angles in a triangle. A few different problems are shown, and the angle measures are found for these triangles.