1) 60,120 2) 179, 1 3) 90,90 etc.

i) Two acute angles can not be supplement of each other.

ii) Two right angles are always supplementary.

iii) Two obtuse angles can not be supplementary of each other.

1) The two angles are supplementary. If one of the angle is thrice that of the other then find the two angles.

As we know that sum of two supplementary-angles is 180

Let one angle be x so other angle be 3x.

x + 3x = 180

4x = 180

x = 180/4

x = 45

&ther4; one angle = 45

and other angle = 3x = 3 x 45 = 135

2) Two supplementary-angles differ by 34

Let one angle = x

Other angle = (x + 34)

As we know that sum of two supplementary-angles is 180

∴ x + x + 34 = 180

⇒ 2x + 34 = 180

⇒ 2x = 180 – 34

⇒ 2x = 146

⇒ x = 146/2

⇒ x = 73

Other angle = 73 + 34 = 107

Hence, the measures of two angles are 73

1) 45

2) 30

3) 112.8

4) 1

5) 34

• Point

• Lines

• Angles

• Lines and Angles

• Complementary angles

• Supplementary angles

• Vertically Opposite Angles

• Linear Pair Angles

• Adjacent Angles

• Parallel Lines

• Solved Problems on Intersecting Lines

• Solved Problems on Parallel Lines

GMAT

GRE

1st Grade

2nd Grade

3rd Grade

4th Grade

5th Grade

6th Grade

7th grade math

8th grade math

9th grade math

10th grade math

11th grade math

Precalculus

Worksheets

Chapter wise Test

MCQ's

Math Dictionary

Graph Dictionary

Multiplicative tables

Math Teasers

NTSE

Chinese Numbers

CBSE Sample Papers