Question

the angles of a quadrilateral are in an AP wth common difference is 20.find all its angles​

Answer 1

Answer:

60°,80°, 100° and 120°

Step-by-step explanation:

Let the least angle = x

Then the other angles will be x+20, x+40 and x+60.

The sum of angles of a quadrilateral will always be 360.

So, x + x+20 + x+40 + x+60 = 360

4x + 120 = 360

4x = 360 - 120 = 240

x = 240/4 = 60

x+20 = 80

x+40 = 100

and x+60 = 120