- Introduction
- |
- What is angle
- |
- Congruence Angle
- |
- Adjacent Angles
- |
- Complimentary Angles
- |
- Supplementary Angles
- |
- Linear Pair Axioms
- |
- Transversal across the parallel Lines
- |
- Angle sum property of Triangles

Given below are the

a) Concepts questions

b) Calculation problems

c) Multiple choice questions

d) Long answer questions

e) Fill in the blank's

a) Acute angle

b) Right angle

c) Obtuse angle

d) Straight angle

e) Reflex angle

f) Vertically opposite angle

g) Alternate interior angles

a) Pairs of vertically opposite angles is always equal

b) The sum of the angles of a triangle is 180

c) If the sum of two adjacent angles is 45

d) If a line is perpendicular is one of two parallel lines, then it is also perpendicular to the other

e) Two lines are intersected by the transversal, and then the corresponding angles are equal

f) Can we have a triangle where all the interior angles are more than 60

g) Sum of two complimentary angles is equal to 90

h) Sum of all the exterior angles of any polygon is always 360

- True

- True

- True

- True

- False

- False

- True

- True

a) 98

b) 100

c) 108

d) 96

X+36+36=180 => x=108

a) 180

b) 90

c) 270

d) 360

a) x=110,y=70,z=80

b) x=70,y=110,z=60

c) x=70,y=100,z=70

d) x=70,y=110,z=70

Vertically opposite angle theorem and linear pair axiom can be used to find the answer

a) 50,60

b) 25,30

c) 35,42

d) 40,48

a) 45

b) 60

c) 70

d) 50

Find the value of x

a) 67

b) 71

c) 57

d) None of these

a) Sum of two supplementary angles is ……………….

b) Two lines parallel to the same line is ……….. each other

c) An acute angle is always less than ………….

d) Angles forming a linear pair are …………….

e) If one angle of triangle is equal to the sum of other two angles, then the triangle is ……….

f) if two straight lines intersect ,the adjacent angles are …………………

a) 180

b) parallel

c) 90

d) supplementary

e) right angle triangle

f) Supplementary

Angle |
30 |
80 |
11 |
87 |

Complementary angle |
||||

Supplementary angle |

Complementary =90- x

Supplementary =180 –x

Class 9 Maths Class 9 Science

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