Which of the following angles is not less than a straight angle?

Acute angle

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Obtuse angle

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Right angle

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Reflex angle

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Solution

The correct option is D
Reflex angle

A Straight angle = $180^{\circ}$
An Acute angle is less than $90^{\circ}$
An obtuse angle is more than $90^{\circ}$ but less than $180^{\circ}$
A Right angle = $90^{\circ}$
Reflex angle is the only angle which is greater than $180^{\circ}$ and less than $360^{\circ}$

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Similar questions

Q. An angle which measures more than

90^{\circ}

and less than

180^{\circ}

is called a/an ____.

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

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

Match the following:

(i) Straight angle (a) Less than one-fourth of a revolution

(ii) Right angle (b) More than half a revolution

(iii) Acute angle (c) Half of a revolution

(iv) Obtuse angle (d) One-fourth of a revolution

(v) Reflex angle (e) Between of a revolution

(f) One complete revolution

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Which of the following angles is not less than a straight angle?

The correct option is D Reflex angle A Straight angle = 180∘ An Acute angle is less than 90∘ An obtuse angle is more than 90∘but less than 180∘ A Right angle = 90∘ Reflex angle is the only angle which is greater than 180∘ and less than 360∘