# Help with Triangle problems please!

Q1. ABC is a triangle with Angle B > 2 Angle C D is a point on BC such that AD bisects Angle BAC and AB=CD. Prove that Angle BAC=$72^{\circ}$

Q3. In Triangle ABC, AD is the bisector of Angle BAC Prove that AB>BD.

Note by Mehul Arora
4 years, 8 months ago

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- 4 years, 8 months ago

If you draw the diagram for the 3rd question you get

$\angle ADB = \angle \dfrac{A}{2} + \angle C$

whereas $\angle BAD = \angle \dfrac{A}{2}$

since $\angle ADB > \angle BAD\Rightarrow AB>BD$

- 4 years, 8 months ago

Not that poor in geometry.. xD

- 4 years, 8 months ago

Haha, I know xD

Neither am I. Idk why I was unable to figure this out :/

- 4 years, 8 months ago

@Anik Mandal Thanks! ^_^ I was not really able to figure it out. It was an easy problem though. Thanks so much :)

- 4 years, 8 months ago

Welcome bro. Did you get the first two?

- 4 years, 8 months ago

Nah, Not really :/ :/

- 4 years, 8 months ago

For the 1st problem.

- 4 years, 8 months ago