Right, Straight and Complete Angle

Q.

Find the reflex angle corresponding to the angle $90°$.

Q.

Find the reflex angle corresponding to the angle $140°$.

Q.

State the kind of angle that is formed between the following directions:

(i) East and West

Q.

There is a circular track of length 400m. If you cover 270${}^{\circ }$ of the track, what is the length you have covered while running?

1. 100m

2. 200m

3. 400m

4. 300m

Q. Vertical angles are .......... right angles.

1. Always
2. Sometimes
3. Data Insufficient
4. Never

Q.

How many right angles do you need to add to get a straight angle?

__

Q. An angle which is equal to ${360}^{\circ }$ is called:

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

Q. Write 'True' or 'False'. Correct all those that are false.
A complete angle measures ${360}^o$.

1. True
2. False

Q. Which direction will you face if you start facing west and make $3/4$ of a revolution anti-clockwise?

Q.

Find the number of right angles turned through by the hour hand of a clock when it goes from $2$ to $8$?

Q. Which of the following is an obtuse angle?

1. 250 degrees
2. 85 degrees
3. 145 degrees
4. 195 degrees

Q.

How many right angles do you need to add to get a straight angle?

__

Q. An angle whose sum is equal to two right angles is ___________.

1. 360 degrees
2. 180 degrees
3. 240 degrees
4. 90 degrees

Q. Which of the following measures 90°?

1. Reflex angle
2. Acute angle
3. Obtuse angle
4. Right angle

Q. Find the number of right angles made by the hour hand when it moves from 12 to 6.

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

Q.

Sum of all the angles on a straight line is ________

1. 90 Degrees

2. 180 Degrees

3. 45 Degrees

4. 30 Degrees

Q. The measure of a ___________ is more than 180° but less than 360°

1. Straight angle
2. Acute angle
3. Reflex angle
4. Right angle

Q.

What is the angle formed between north and south direction?

1. Straight angle

2. Right angle

3. Acute angle

4. Obtuse angle

Q. The measure of a straight angle is equal to _____

1. 90 degrees
2. 180 degrees
3. 240 degrees
4. 360 degrees