Vertically Opposite Angles
Trending Questions
Q.
In the figure below, OP, OQ, OR and OS are four rays. Then, find (∠ POQ + ∠ QOR + ∠ SOR + ∠ POS)3.
- 60∘
- 120∘
- 90∘
- 30∘
Q.
In the figure below, lines AB and CD intersect each other at point O. The angle pairs (∠AOD, ∠COB) and (∠AOC, ∠BOD) are called ___.
- vertically opposite angles
- opposite interior angles
- corresponding angles
- adjacent pair angles
Q.
In the figure below, lines AB and CD intersect at O. If ∠AOC + ∠BOE = 70∘ and ∠BOD = 40∘, find (2 ∠BOE).
- 50∘
- 30∘
- 60∘
- 90∘
Q. Assertion (A) : If two internal opposite angles of a triangle are equal and external angle is given to be 110°, then each of the equal internal angle is 55°.
Reason (R) : A triangle with one of its angle 90°, is called a right triangle.
[2 marks]
Reason (R) : A triangle with one of its angle 90°, is called a right triangle.
[2 marks]
- Both A and R are true, and R is the correct explanation for A.
- Both A and R are true, and R is not the correct explanation for A.
- A is true but R is false.
- A is false but R is true.
Q. Select the correct option based on the given figure.


- Insufficient data
- ∠u > ∠y
- ∠u = ∠y
- ∠u < ∠y
Q.
In the figure, given below ∠COD = 150∘. Choose the correct option.
BOC = 40
AOB = 15
- None of the above
AOB = 150
Q. When two straight lines intersect, which of the following statements is/are true?
- Adjacent angles are complementary.
- Adjacent angles are supplementary.
- Vertically opposite angles are equal.
Vertically opposite angles are supplementary.
Q.
In the figure, two lines intersect at O. If x = 75∘, find ∠u + ∠y.
Q.
In the given figure AB and CD are two lines intersecting at O. If ∠AOC and ∠BOC are in ratio 2 : 3, find all angles.
- 72∘, 108∘, 108∘, 72∘
- 30∘, 120∘, 30∘, 120∘
- 50∘, 120∘, 50∘, 120∘
- 45∘, 100∘, 100∘, 45∘
Q. In the following figure, ∠1=2y+25∘, ∠2=x+15∘. Find x and y, if 2y+25∘=3y.

- x=60∘, y=20∘
- x=65∘, y=25∘
- x=65∘, y=20∘
- x=60∘, y=25∘