Lines And Angles - Olympiad Level MCQ, Class 9 Mathematics - Class 9 MCQ

If two supplementary angles are in the ratio 4 : 5 then the angles are :-

From the adjoining figure the value of x° is :-

The sum of the two angles in a triangle is 95° and their difference is 25°. Then the angles of a triangle is :-

The sides BC, CA and AB of ∠ABC are produced in order to form exterior angles ∠ACD, ∠BAE and ∠CBF then ∠ACD + ∠BAE + ∠CBF is

In the figure, the bisector of B and C meet at 0. Then ∠BOC is :-

From the adjoining figure, if ∠2 = 55° and  ∠5 = 60° then the lines m and n are

In the adjoining figure, the value of ∠A +  ∠B + ∠C + ∠D + ∠E + ∠F is

An exterior angle of a triangle is 110° and one of the interior of opposite angles is 40°. Then the other two angles of a triangle are :-

From the adjoining figure AB || DE. Then the value of x° is :-

In figure, find x if AB || CD.

In the adjoining figure the value of x is :-

The angle ABC and BDC are right angles. If AD = 9 cm and DC = 16 cm and AB = 15 cm then the length of BD is :-

In the given figure PQ || RS ∠PAB = 70°, ∠ACS = 110° then  ∠BAC is :-

In the adjoining figure AB || CD, ∠1 : ∠2 = 3 : 2. Then ∠6 is :-

In a ΔABC if 2∠A = 3∠B = 6∠C then ∠A, ∠B, ∠C are

In the adjoining figure, it is given that ∠A = 60°, CE || BA and ∠ECD = 65° then ∠ ACB = _______ .

In the adjoining figure, it is given that AB || CD, ∠BAO = 108° and ∠OCD = 120° then  ∠AOC = ______

The exterior angle of a triangle is equal to the sum of two

The angles of a triangle are in the ratio 5 : 3 : 7, the triangle is :

If one angle of a triangle is equal to the sum of the other two angles, then the triangle is :

The number of lines that can pass through a given point is :

The number of line segments determined by three given non-collinear points is :