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Theorems
Theorem 6.2 Important Deleted for CBSE Board 2023 Exams You are here
Theorem 6.3 Deleted for CBSE Board 2023 Exams
Theorem 6.4 Deleted for CBSE Board 2023 Exams
Theorem 6.5 Important Deleted for CBSE Board 2023 Exams
Theorem 6.6
Theorem 6.7 Important Deleted for CBSE Board 2023 Exams
Theorem 6.8 Deleted for CBSE Board 2023 Exams
Last updated at March 22, 2023 by Teachoo
Theorem 6.2 :- If a transversal intersects two parallel lines, then each pair of alternate interior angles are equal. Given :- Two parallel lines AB and CD. Let PS be the transversal intersecting AB at Q and CD at R. To Prove :- Each pair of alternate interior angles are equal. i.e, BQR = CRQ and AQR = QRD Proof :- First, we will prove BQR = CRQ From (1) and (2) BQR = CRQ Similarly we can prove AQR = QRD Hence, pair of alternate interior angles are equal. Hence proved.