Which of the following is smaller than a right angle?

Obtuse angle

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Acute angle

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Reflex angle

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Whole angle

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Solution

The correct option is B
Acute angle

An angle that measures $90^{\circ}$ is called a right angle.

An angle that measures less than $90^{\circ}$ is called an acute angle.

$∴$ An acute angle is smaller than a right angle.

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Similar questions

Q. An acute angle is less than right angle.

Question 11
If the sum of two angles is greater than $180^{\circ}$ , then which of the following is not possible for the two angles?
a) One obtuse angle and one acute angle
b) One reflex angle and one acute angle
c) Two obtuse angles
d) Two right angles

Q. Classify the following angle as right, straight, acute, obtuse or reflex:

Q. An angle which measures more than 180° but less than 360° is called
(a) an acute angle
(b) an obtuse angle
(c) a straight angle
(d) a reflex angle

Q. Reflex angle is greater than ____ and smaller than ____.

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Which of the following is smaller than a right angle?

The correct option is B Acute angle An angle that measures 90∘ is called a right angle. An angle that measures less than 90∘ is called an acute angle. ∴ An acute angle is smaller than a right angle.

The correct option is B
Acute angle

An angle that measures $90^{\circ}$ is called a right angle.

An angle that measures less than $90^{\circ}$ is called an acute angle.

$∴$ An acute angle is smaller than a right angle.