Question

Find x+y+z in fig 1 and x+y+z+a+b in fig 2

Answer 1

Answer:

(i) 360° (ii) 360°

Step-by-step explanation:

It's a rule that sum of all exterior angles of a polygon is always 360°.

You see we take two examples.

1.equilateral triangle

All exterior angles are 120°

There are 3 exterior angles

120*3=360

2.square

All exterior angles are 90°

There are 4 exterior angles

90*4=360

Remember this is quite a basic rule and always should be remembered at once when you see any further questions related to it.