Suppose we have a map with North, South, East, West Map If we move from We have rotated ‘right angle’ in clockwise direction.

We see that

We have rotated 1/4 of the full turn.

So, right angle is 1/4 of the full rotation

If we go from

East to South We have rotated right angle in clockwise direction

Now, if we go from

South to North clockwise We have rotated 1/2 revolutions.

This is straight angle .

2 right  angle = 1 straight angle

Similarly,

If we go from East to West Clockwise Then we have rotated 1/2 revolution

i.e.  we have rotated

1 straight angle

Suppose,

We go from North to North In this case,

we have rotated 1 revolution

∴  we have rotated 1 full angle

#### In Summary 1. Chapter 5 Class 6 Understanding Elementary Shapes
2. Concept wise
3. Right angle and straight angle

Transcript

In Summary, 1/4 revolution I.e. 1 right angle 1/2 revolution i.e. 2 right angle i.e. 1 straight angle 1 revolution i.e. 4 right angles i.e. 2 straight angles i.e. 1 full angle

Right angle and straight angle 