Angles and turns · कोण
Is it smaller than a square corner, exactly one, or bigger? Sort the angles, then turn the clock.
Angles and turns games
Angles and turns
An angle is made where two lines meet. It tells us how much one line has turned from the other.
Acute: less than 90°
Right angle: exactly 90°
Obtuse: between 90° and 180°
- A quarter turn = a right angle = 90°. A half turn = 180° (a straight line). A full turn = 360°.
- Test with a paper corner: fold any paper twice to make a right-angle tester. Smaller than it? Acute. Bigger? Obtuse.
Goes with NCERT Maths Mela 5 (angles and turns).
A one-page chart to stick on the wall, and a worksheet to practise.
Angles and turns
Angles and turns
An angle is made where two lines meet. It tells us how much one line has turned from the other.
Acute: less than 90°
Right angle: exactly 90°
Obtuse: between 90° and 180°
- A quarter turn = a right angle = 90°. A half turn = 180° (a straight line). A full turn = 360°.
- Test with a paper corner: fold any paper twice to make a right-angle tester. Smaller than it? Acute. Bigger? Obtuse.
kheloaurseekho.in — free charts, games and worksheets
Angles — worksheet
Name: ____________________ Class: ______ Date: __________
1. A right angle is ______ °. A straight angle is ______ °. A full turn is ______ °.
2. Write acute, right or obtuse: 30° ______ 90° ______ 120° ______ 75° ______
3. Minute hand 12 → 6 is a ______ turn. 12 → 3 is a ______ turn.
4. Find 3 right angles in your classroom: ______________________
5. Draw an acute angle and an obtuse angle:
6.
kheloaurseekho.in — free charts, games and worksheets
