Question

how to prove the theorem of alternate interior angles

Answer 1

$\huge\mathfrak\pink{Answer!}$

The theorem states that “ if a transversal crosses the set of parallel lines, the alternate interior angles are congruent”. Proof: Suppose a and b are two parallel lines and l is the transversal which intersects a and b at point P and Q. See the figure. Hence, it is proved.

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Answer 2

Answer:

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Step-by-step explanation:

Theorem and Proof

Statement: The theorem states that “ if a transversal crosses the set of parallel lines, the alternate interior angles are congruent”. Proof: Suppose a and b are two parallel lines and l is the transversal which intersects a and b at point P and Q. See the figure. Hence, it is proved.