Medium Math Class 9 Level 7

If a transversal cuts two parallel lines and one co-interior angle is 127° then what is the other co-interior angle?

दो समांतर रेखाओं को तिर्यक काटे और एक सह-अंतः कोण 127° हो तो दूसरा सह-अंतः कोण कितना होगा?

A 43° / 43° B 53° / 53° C 63° / 63° D 127° / 127°
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Correct Answer

B. 53° / 53°

Explanation

Co-interior angles sum to 180° so the other angle is 53°.

सह-अंतः कोणों का योग 180° होता है इसलिए दूसरा 53° है।

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