Question

an angle which measures less than a right angle is called an ____

Answer 1

hey friend....
your answer is acute angle.
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Answer 2

An angle which measures less than a right angle is called an Acute angle.

Explanation:

What is an Acute angle?

• An Angle whose measure is less than 90° but greater than 0° is called an acute angle. 0° < Acute angle < 90°
• Some examples of acute angles are 10°, 45°, 38°, 75°, 55°, and 89°.
• Two acute angles will never form a linear pair because the measure of a linear pair of angles should always be 180° and an acute angle is less than 90°.
• For e.g, 65° and 75° are two angles such that 65° + 75° = 140° < 180°. Hence, 65° and 75° do not form a linear pair.

Angles according to their measure in ascending order are as follows:

Zero angle < Acute angle < Right angle < Obtuse angle < Straight angle < Reflex angle < Complete angle

1. Zero angle:

An angle whose measure is 0° called a zero angle.

2. Acute angle: 0° < Acute angle < 90°

3. Right angle:

An angle whose measure is 90° called a right angle.

6. Obtuse angle:

90° < Obtuse angle < 180°

7. Straight angle:

An angle whose measure is 180° is called a straight angle. A straight angle has two right angles.

8. Reflex angle:

180° < Reflex angle < 360°

9. Complete angle:

An angle whose measure is 360° called a complete angle.

Learn more on Brainly:

Question 2 Classify each one of the following angles as right, straight, acute, obtuse or reflex:

brainly.in/question/1321122

Question 3 Write down the measures of (a) Some acute angles. (b) Some obtuse angles. (Give at least two examples of each).

brainly.in/question/1321126

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