Obtuse Angle

Q. The angle which is greater than 90° but less than 180 ° is known as ________.

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

Q. Choose the correct options of obtuse angles from the figures given below:

1. 
2. 
3. 
4. 

Q. If it is 8 'o'clock in the morning, what is the angle made by the minute hand and the hour hand?

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

Q. Sum of the measures of an acute angle and an obtuse angle must be less than ${270}^{\circ }$.

1. False
2. True

Q. Is this angle greater than, equal to, or less than a right angle?

1. greater than a right angle
2. equal to a right angle
3. less than a right angle

Q.

An angle which measures ${175}^{\circ }$ is called as an ___ angle.

Q. When a clock is showing time as 07:00 hours, the angle included between the hour and the minute hand is called ________ angle.

1. an obtuse
2. an acute
3. a straight
4. a right

Q.

Classify the angle whose magnitude is $210°$.

Q. Half of an obtuse angle is _______.

1. always an obtuse angle
2. always an acute angle
3. a straight angle
4. never an acute angle

Q.

Classify the following into acute angle, obtuse angle, reflex angle, and right angle:

$60°,120°,270°,210°,30,45°,150°,235°$

Q. An angle whose measure is greater than $90$ degree and less than $180$ degree is called ____

Q.

If the measure of an angle is twice the measure of an acute angle, then this angle is necessarily an obtuse angle.

1. True
2. False

Q. Is the following angle acute, right, obtuse or straight ?

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

Q. An angle which measures ${165}^{\circ }$ is called a/an -

1. Obtuse Angle

2. Reflex Angle

3. Acute Angle

4. Right Angle

Q.

What is the measure of an angle:
a) less than a right angle called?
b) greater than a right angle called?
[2 MARKS]

Q.

Measure of the angle in the figure below is ___.

1. 35${}^{\circ }$

2. 45${}^{\circ }$

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

4. 80${}^{\circ }$

Q. Classify the following angles into acute​ and obtuse angles.

Q.

The measure of an ____ angle is between $180°$ and $360°$

Q.

Classify the angles whose magnitude is ${175}^{°}$.

Q.

Which is smaller an acute angle or an obtuse angle?

Q.

Refer to the figure below, which of the given options is correct?

1. ABD is an acute angle.

2. ABD is an obtuse angle.

3. ABD is reflex angle

4. can't say

Q.

Which of the following is reflex angle ?

1. 25$°$

2. 135$°$

3. 180$°$

4. 195$°$

Q. Two lines intersect at a single point. Comment on the possible angles formed by the two lines.

1. Two obtuse angles
2. Two acute angles
3. Straight angles
4. Right angles

Q.

The angle given in figure is a/an -

1. Right Angle

2. Acute Angle

3. Obtuse Angle

4. Straight Angle

Q.

Classify the angles whose magnitudes are given below:

$178°$

Q.

If an angle is half of an obtuse angle, then it is necessarily an acute angle.

1. True
2. False

Q.

State whether the following statement is true or false.
90${}^{\circ }$ is an example of an obtuse angle.

1. True
2. False

Q. Write down the measures of some obtuse angles.(give at least two examples)

Q. Find the number of acute angles formed in the figure given below.

1. 5
2. 7
3. 9
4. 6

Q. Classify the highlighted angle formed between the hour​ hand and the minute hand at 8 o'clock.​

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