We studied that

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1 revolution = Full angle

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1/4 revolution = Right Angle

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1/2 revolution = Straight angle

 

Now,

  Acute angle is less than right angle.

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Other examples are

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Obtuse Angles

Obtuse angle is angle greater than a right angle but smaller than a straight angle.

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Other examples are

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Reflex Angles

Reflex angle is greater than a straight angle

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Other examples are

31.jpg

 

  1. Chapter 5 Class 6 Understanding Elementary Shapes
  2. Concept wise
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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.