(a) Prove that the sum of the angles in a triangle is two right angles. (b) In a triangle LMN, the side NM is produced to P and the bisector of < LNP meets ...

(a) Prove that the sum of the angles in a triangle is two right angles.

(b) In a triangle LMN, the side NM is produced to P and the bisector of < LNP meets ML produced at Q. If < LMN = 46°, and < MLN = 80°, calculate < LQN, stating clearly your reasins.

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