Question

the angle of a quadilateral are in ap whose common difference is 10degree find the angle explain it whose the 4 come in the solution

Answer 1

Since the angles are in A.P., let the angles are p, p+10, p+20, p+30sum of angles=360⇒ p + p+10 + p+20 + p+30 = 360⇒ 4p + 60 = 360⇒ 4p = 360-60 = 300⇒ p = 300/4 = 75
So the angles arep = 75p+10 = 75+10 = 85p+20 = 75+20 = 95p+30 = 75+30 = 105

Answer 2

This is the 1st angle find other.
by putting the value of 'a' in
a+10
a+20
a+30
done