Triangle Angle Word Problem 4

In this lesson, Julie Harland teaches about the sum of angles in a triangle and provides word problems involving isosceles and right triangles. She explains that the angles in an isosceles triangle have the same measure, while in a right triangle, one angle is 90 degrees, making the other two angles complementary. Harland provides step-by-step instruction on how to solve word problems involving these types of triangles, including defining variables and writing equations to find the measure of each angle.

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

• What is a right triangle?
• What is special about a right triangle?
• If one angle in an isosceles triangle is 16 degrees more than twice the measure of one of the equal angles, what is the measure of each angle?
• If one angle measure in a right triangle is 38 degrees, what is the measure of the other angles?
• If the angles of a triangle are x, x, and 2x + 16, what does x equal, and what is the measure of each angle?
• What is an easy way of solving 4x + 16 = 180?
• If the angles of a triangle are 38, 90, and x, what does x equal?