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Theorems
Theorem 6.2 Important Deleted for CBSE Board 2023 Exams
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 You are here
Last updated at March 22, 2023 by Teachoo
Theorem 6.8 :- If a side of a triangle is produced, then the exterior angle so formed is equal to the sum of the two interior opposite angles. Given :- A PQR ,QR is produced to point S. where PRS is exterior angle of PQR. To Prove :- 4 = 1 + 2 Proof:- From (1) and (2) 3 + 4 = 1 + 2 + 3 4 = 1 + 2 PRS = RPQ + PQR Hence, exterior angle is sum of two opposite interior angles. Hence proved