Supplementary Angles Proof: Is Alpha + Beta = 180 Degrees?

Question

True or false?

α+β=180 \alpha+\beta=180

αβ

Video Solution

Solution Steps

00:00 Are the angles supplementary to 180?
00:03 The angles are on the same line and are intersected by the same leg
00:06 Therefore they are adjacent angles, adjacent angles are supplementary to 180
00:10 And this is the solution to the question

Step-by-Step Solution

Given that the angles alpha and beta are on the same straight line and given that they are adjacent angles. Together they are equal to 180 degrees and the statement is true.

Answer

True

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The Sum of the Interior Angles of a Triangle The sides or edges of a triangle Triangle Height Exterior angles of a triangle

Question Types

Parts of a Triangle: True / false