Finding Angle Measurements in a Triangle

This lesson teaches how to find the measure of an angle in a triangle using the other two angles. It reviews the concept that the sum of angles in a triangle is 180 degrees and explains how to combine like terms in algebraic expressions. The lesson addresses common misconceptions, such as the incorrect belief that the sum of triangle angles is 90 degrees. Through examples, it demonstrates how to calculate specific angles in a triangle using given values and expressions. The lesson concludes with a summary of the key points covered.

Explain the process of combining like terms in the context of finding angles in a triangle.

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If angle A is expressed as x + 11 and you find x to be 29, what is the measure of angle A?

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