Straight Angle

Q. Measure the angle formed when the clock ticks to 2'O' clock.

1. ${30}^{\circ }$
2. ${60}^{\circ }$
3. ${90}^{\circ }$
4. ${150}^{\circ }$

Q.

An angle whose measure is the sum of the measures of two right angles is

Q.

Question 3: Draw rough diagrams of two angles such that they have:
One point in common.

Q.

What is the maximum angle a protractor can measure at a time?

1. ${180}^{\circ }$

2. ${360}^{\circ }$

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

4. ${90}^{\circ }$

Q. Find the missing angle in the following figure.

1. ${170}^{\circ }$
2. ${135}^{\circ }$
3. ${140}^{\circ }$
4. ${160}^{\circ }$

Q.

Given in a clock, the hour hand is fixed at 12 and the minute hand is made to rotate. The reading of the angle moved by minute hand is taken as twice its actual reading. If the minute hand is at 6 according to the wrong reading, what is the position of minute hand according to the actual reading? Also, find the actual angle rotated by the minute hand. [4 MARKS]

Q. Find the order of rotation for each of the following

Q.

Earth rotates $360°$ in one day. Through what type of angle does it rotate in $8$ hours.$?$

Q. What part of a revolution have you turned through if you stand facing west and turn clockwise to face east?

1. Two out of four parts.
2. Two out of three parts.
3. Three out of four parts.
4. None of the above.

Q. In the given diagram AB$\parallel$PQ. Then $\angle$XOB and $\angle$YO^'P are called

1. corresponding angles
2. alternate interior angles
3. alternate exterior angles
4. interior angles on the same side of the transversal

Q. Two buses are moving on a straight road in opposite direction. What is the angle between them?

1. Zero degree
2. Right angle
3. Straight angle
4. ${360}^o$

Q. Which of the following make a straight angle?

1. $\angle AOB$
2. $\angle AOC$
3. $\angle BOC$
4. 
   $\angle BOD$

Q. Where will the hour hand of a clock stop if it starts from 6 and turns through 2 straight angles?

1. 6
2. 1
3. 10
4. 4

Q.

Fill in the blanks with acute, obtuse, right or straight:

An angle whose measure is the sum of the measures of two right angles is _________

Q.

Can we have two acute angles whose sum is an obtuse angle.Why or why not?

Q. A straight angle measures _________

1. 90${}^{\circ }$
2. 100${}^{\circ }$
3. 180${}^{\circ }$
4. 
   360${}^{\circ }$

Q. Which of the following numbers has the angle of rotation is 180º?

1. 6889
2. 2083
3. 9090
4. 4669

Q. What part of a revolution have you turned through if you stand facing west and turn clockwise to face east?

1. Two out of four parts.
2. Two out of three parts.
3. Three out of four parts.
4. None of the above.

Q. The angle between two straight bars is ${30}^o.$

The bar B is rotated by ${45}^o$ in clockwise direction, whereas the bar A is rotated by ${105}^o$ in the anticlockwise direction. Find the final relative position of the bars.

1. The subtended angle between both bars will be ${180}^o$.
2. The subtended angle between both bars will be ${30}^o$.
3. They are exactly oppostite to each other.
4. None of the above.

Q.

Classify the $180°$ according to magnitude.

Q. Where will the hour hand of a clock stop if it starts from 6 and turns through 1 right angle?

Q. A traveler was moving in north direction then he took two right turns. In what direction is he moving now?

1. In the same direction.
2. In the opposite direction.
3. None of the above.
4. Cannot be determined.

Q.

Find the angle between the hands of a clock at

3: 30 oclock.

Q.

If the wheel of a car makes four complete rotation and half a turn, then the number of right angles through which it turns is:

1. 16

2. 18

3. 20

4. 8

Q.

Which of the following angles is a straight angle?

1. ${45}^{\circ }$
2. ${90}^{\circ }$
3. ${180}^{\circ }$
4. ${110}^{\circ }$

Q.

A straight angle is equal to ___ right angle(s).

1. 1

2. 4

3. 3

4. 2

Q. What is a straight angle?

1. $0^o$
2. ${90}^o$
3. ${180}^o$
4. ${360}^o$

Q. Three complete rotations will have ___________ straight angles.

1. 3
2. 4
3. 6
4. 8

Q. An angle of measure 180${}^{\circ }$ is called a _________

Q.

From the figure given below , name the three acute angles formed.

1. $\angle ABC,\angle DBC,\angle DBA$

2. $\angle BDA,\angle ABC,\angle BCD$

3. $\angle CAB,\angle BDA,\angle BCD$

4. $\angle ACB,\angle BDA,\angle BCD$