Angles

Q. Find the value of supplementary angle of ${90}^{\circ }$.

1. ${90}^{\circ }$
2. ${110}^{\circ }$
3. ${90}^{\circ }$
4. ${70}^{\circ }$

Q. What fraction of a clockwise revolution does the hour hand of a clock turn through when it goes from 1to3 ?

Q.

What is the angle between the hands of a clock at $3oclock$.

Q.

Question 9

Draw an angle of ${40}^{\circ }$ Copy its supplementary angle.

Q.

${45}^{\circ }$ angle is drawn. The value of its supplementary angle is _____.

1. ${45}^{\circ }$

2. ${205}^{\circ }$

3. ${135}^{\circ }$

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

Q.

Q7. Where will the hour hand of a clock stop if it starts

(a) From 6 and turns through 1 right angle?

(b) From 8 and turns through 2 right angles?

(c) From 10 and turns through 3 right angles?

(d) From 7 and turns through 2 straight angles?

Q.

Question 2 (d)

Where will the hand of a clock stop if it:

Starts at 5 and makes $\frac{3}{4}$ of a revolution, clockwise?

Q. An angle whose measure is ${180}^{\circ }$ is called a straight angle.

1. True
2. False

Q.

Give two examples each of right, acute and obtuse angles from your environment.

Q. is a unit of measuring angle.

1. A degree
2. A centimetre
3. A gram
4. A litre

Q. Find the supplementary angle of ${98}^{\circ }$.

1. ${72}^{\circ }$
2. ${82}^{\circ }$
3. ${90}^{\circ }$
4. ${92}^{\circ }$

Q. An angle was measured to be ${140}^{\circ }$. What type of angle is it?

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

Q.

Question 2 (b)

Where will the hand of a clock stop if it:
Starts at 2 and makes $\frac{1}{2}$ of a revolution, clockwise?

Q. Where will the hand of a clock stop if it starts at 5 and makes ¼ of a revolution clockwise?

1. 7
2. 10
3. 9
4. 8

Q.

What is the angle between the hands of a clock at $5oclock$.

Q.

Question 1 (b)

What fraction of a clockwise revolution does the hour hand of a clock turn through, when it goes from
4 to 7

Q.

Draw an angle of measure ${135}^{\circ }$ and divide it into four parts. [4 MARKS]

Q.

Question 5

If a bicycle wheel has 48 spokes, then the angle between a pair of two consecutive spokes is

a) ${\left(5\frac{1}{2}\right)}^o$
b) ${\left(7\frac{1}{2}\right)}^o$
c)${\left(\frac{2}{11}\right)}^o$
d) ${\left(\frac{2}{15}\right)}^o$

Q. The angle shown below measures _____ degrees and is an ______ angle.

1. 65, acute
2. 65, obtuse
3. 125, acute
4. 125, obtuse

Q. right angles make a straight angle.

1. one
2. two
3. three
4. four

Q.

What is the angle between the hands of a clock at $11oclock$.

Q. A complete angle is equal to ${180}^{\circ }$.

1. True
2. False

Q. An angle which measures more than ${180}^{\circ }$ but less than ${360}^{\circ }$ is called an obtuse angle.

1. True
2. False

Q.

What fraction of a clock wise revolution does the hour hand of a clock turn through when it goes from

(a) 3 to 9 (b) 4 to 7 (c) 7 to 10

(d) 12 to 9 (e) 1 to 10 (f) 6 to 3

Q. The angle which is less than ${90}^{\circ }$ is known as a/an :

1. Obtuse angle
2. Supplementary angle
3. Complementary angle
4. Acute angle

Q. The measure of half of the angle shown in the given figure is ___

1. 50${}^{\circ }$
2. 25${}^{\circ }$
3. 75${}^{\circ }$
4. 130${}^{\circ }$

Q.

The instrument used to measure an angle is:

1. Ruler

2. Protractor

3. Divider

4. Compasses

Q.

Find the angle between the hour hand and minute hand when the clock shows 2 p.m.

Ans:___

Q.

Draw an angle of measure $135°$ and bisect it.

Q.

Question 50
Is it possible for the same
a) line segments to have two different lengths?
b) angles to have two different measures?