EASY
9th CBSE
IMPORTANT
Earn 100

A transversal intersects two parallel lines. Prove that the bisectors of any pair of corresponding angles so formed are parallel.

Important Questions on Lines and Angles

EASY
9th CBSE
IMPORTANT

Prove that through a given point, we can draw only one perpendicular to a given line.

HARD
9th CBSE
IMPORTANT
Prove that two lines that are respectively perpendicular to two intersecting lines intersect each other.
[Hint: Use proof by contradiction]
HARD
9th CBSE
IMPORTANT
Prove that a triangle must have at least two acute angles.
HARD
9th CBSE
IMPORTANT

In the given fig., Q>R, PA is the bisector of QPR and  PMQR. Prove that APM=12(Q-R).

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