- A90°
- B45°
- C60°
- D120°
Step-by-Step Solution
∠QMN and ∠MNS are co-interior, so they add to 180°. Their halves add to 90°, so in triangle MTN the third angle is .
Answer: A) 90°
PQ ∥ RS and a transversal meets PQ at M and RS at N. The bisectors of ∠QMN and ∠MNS meet at T. What is ∠MTN?
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