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If two lines intersect, then vertically opposite are not equal.

If two interior angles on the same side of the transversal intersecting two parallel lines are in the ratio 2 : 3, then the greater of the two angle is

Lines parallel to the same line are parallel to each other

Angles of a triangle are in the ratio 2 : 4 : 3. The smallest angle of the triangle is

in fig, POQ is a line. then the value of x is

P

O

Q

40

4x

3x

If one of the angles of a triangle is 130 deg, then the angle between the bisectors of the other two angle can be

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

An exterior angle of a triangle is 105 deg and its two interior angles are equal. Each of these equal angles is

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

A

B

C

D

E

F

P

25

60

Q

R

S

In the given fig. AB||CD||EF, PQ||RS,

RQD =25

CQP = 60

, then QRS is equal to

and

This is class IX MCQ tests. This test will allow you to understand the topic Lines and Angles and be prepared for your class IX exams. Lines and Angle is about the complementary angles, Supplementary angles, Adjacent angles, Linear pair and Vertically Opposite angles.

bisectors of interior angle B and exterior angle ACD of triangle ABC intersect at the point T. prove that angle BTC = 1/2 angle BAC.

pls answer it fast. i need to study for my exam.

2582 days 17 hours 55 minutes ago

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Nidhi ShrivastavaI hope you are able to draw the fig. With ABC AS A TRIANGLE and T as an external pt.

We have ext ACD= A+ B => 1/2 ext ACD = 1/2A + 1/2 B => 2= 1 + 1/2A (1)

( mark ang tbc as 1 and TCD as 2 )

In BCT WE HAVE

ext TCD = 1 + T => 2= 1+ T. ......(2)

From 1 and 2 eq

1+ 1/2A = 1+ T

=&… See more

2582 days 14 hours 2 minutes ago

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