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PROOF! Prove Theorem: If two lines are perpendicular, then they form congruent adjacent angles. Given: Line AB is perpendicular to line CD. Angle 1 and angle 2 are a linear pair. Prove: Angle 1 is congruent to angle 2.

PROOF Prove Theorem If two lines are perpendicular then they form congruent adjacent angles Given Line AB is perpendicular to line CD Angle 1 and angle 2 are a class=

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Answer:

From construction, we construct point M as the center of the figure. According to the linear pair postulate, we know that the sum of the angles on a straight line equal to 180 degrees. Therefore, we know that the other angles have to be 90 degrees. Therefore the angles are congruent because all right angles are congruent.

Step-by-step explanation:

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