Congruency of Angles

Q. If all the angles and sides of a polygon are equal, then it is called a/an ______ polygon.

1. congruent
2. irregular
3. regular
4. similar

Q. In a wall clock, the angle made by minute and hour hands at 3 o'clock angle is congruent to ___ .

1. 9 o'clock
2. half past 8
3. half past 3
4. 6 o'clock

Q. What is a Quadrilateral?

Q. If $BC\parallel GE$ and $AF$ is a transversal, then $\angle ABC$ and $\angle GDF$ are always ____ .

1. congruent
2. supplementary
3. similar
4. (a) and (c) above.

Q. The angles are said to be congruent if they have same shape.

1. False
2. True

Q.

From the adjoining figure, the value of $x^o$ is:

1. 15°

2. 60°

3. 30°

4. 20^o

Q. In a quadrilateral, all the angles are always.

1. equal
2. congruent
3. not congruent

Q. In a wall clock, the angle made by minute and hour hands at 3 o'clock angle is congruent to ___ .

1. 9 o'clock
2. half past 3
3. half past 8
4. 6 o'clock

Q. Select the correct option(s) about the congruency of the angles.

1. All the angles in a regular polygons are congruent.
2. If two angles are said to be congruent, then they must have same measure.
3. In an isosceles triangle, two angles are congruent.
4. In a scalene triangle, any angle is congruent to other.

Q. If BC $\parallel$ DE then $\angle ABC$ and $\angle ADE$ are ___

1. similar
2. congruent
3. supplementary
4. (a) and (b) above.