Types of Angles

Q.

An obtuse angle is formed between the hands of a clock at _____.

1. 12 o' clock
2. 8 o' clock
3. 3 o' clock
4. 6 o' clock

Q.

Give three examples of angles from your environment.

Q. In the given figure identify:
(i) Five pairs of adjacent angles.
(ii) Three linear pairs.
(iii) Two pairs of vertically opposite angles.

Q. An angle which measures 89 degrees is a/an _____.

1. obtuse angle
2. acute angle
3. straight angle
4. right angle

Q.

Sum of all angles on a straight line is ______.

1. 90 degrees

2. 180 degrees

3. 200 degrees

4. 100 degrees

Q.

Two lines intersect at a point and a ray is drawn from the point of intersection. The ray divides the angle between the lines into 1:2 ratio. One of the angles is given, find the value of 'x'.

1. ${100}^{\circ }$

2. ${30}^{\circ }$

3. ${60}^{\circ }$

4. ${50}^{\circ }$

Q.

From the figure given below, find out the measure of $\angle$ABD and $\angle$DBC respectively.

1. 24 and 126

2. 42 and 156

3. 24 and 156

4. 42 and 126

Q.

An angle is 2/3 of its complementary angle.Find the measure of the angle

Q.

An angle which is equal to 90 degrees is known as ____.

1. acute angle

2. right angle

3. obtuse angle

4. reflex angle

Q.

Q.

An angle that measures 180 degrees is called a _______

1. Straight Angle

2. Right Angle

3. Acute Angle

4. Obtuse Angle

Q. In the given figure, PA|| BC|| DT and AB|| DC. Then, the values of a and b are respectively

1. ${60}^{\circ },{120}^{\circ }$
2. ${50}^{\circ },{130}^{\circ }$
3. ${70}^{\circ },{110}^{\circ }$
4. ${80}^{\circ },{100}^{\circ }$

Q. What is the angle between the minute hand and hour hand on the clock?

[3 Marks]

Q.

An angle that measures 180 degrees is called a _______

1. Straight Angle

2. Right Angle

3. Acute Angle

4. Obtuse Angle

Q.

How many degrees are there in $0.5$ times of a straight angle.

Q. In the given figure PQ || RS, TR || QU and $\angle PTR={42}^{\circ }$. Find $\angle QUR.$ (2 Mark)

Q. The angle which is one-fifth of its complement is:

1. ${15}^o$
2. ${45}^o$
3. ${30}^o$
4. ${60}^o$

Q.

A straight angle is divided into four parts in the ratio 1:2:3:6. Find the measure of the largest angle.

1. ${90}^{\circ }$

2. ${30}^{\circ }$

3. ${45}^{\circ }$

4. ${60}^{\circ }$

Q. An angle which measures 89 degrees is a/an _____.

1. right angle
2. acute angle
3. obtuse angle
4. straight angle

Q.

Two rays are drawn from a point 'P' on a line as shown. If angle 'a' and 'c' are equal and twice that of angle 'b'. Then find angle 'b'.

1. ${36}^{\circ }$

2. ${12}^{\circ }$

3. ${72}^{\circ }$

4. ${18}^{\circ }$

Q.

In the figure given, what is the value of $\angle t$?

1. ${50}^{\circ }$

2. ${40}^{\circ }$

3. ${60}^{\circ }$

4. ${30}^{\circ }$

Q.

The sum of angles at a point is equal to:

1. $90°$

2. $180°$

3. $360°$

4. none of these

Q. In the given figure, PA|| BC|| DT and AB|| DC. Then, the values of a and b are respectively

1. ${60}^{\circ },{120}^{\circ }$
2. ${50}^{\circ },{130}^{\circ }$
3. ${70}^{\circ },{110}^{\circ }$
4. ${80}^{\circ },{100}^{\circ }$

Q.

How many degrees are there in $\frac{3}{4}$ of complete angle?

Q.

If $\angle$XYZ = ${90}^{\circ }$, $\angle XYZ$ is also known as a/an ___ angle.

Q. In the given figure, POQ is a line, then the value of $x$ is

1. ${20}^{\circ }$
2. ${25}^{\circ }$
3. ${30}^{\circ }$
4. ${35}^{\circ }$

Q. Find the angle which is four times its complement.

1. 72°
2. 27°
3. 108°
4. 63°

Q. If the measure of an angle is twice the supplementary angle, find the angle

Q.

How many acute angles does an acute triangle have?

1. 3
2. 1
3. 4
4. 2