Question

In a quadrilateral ,the angles are xdegree , (x+10)degree , (x+20)degree ,(x+30)degree .find the angles

Answer 1

we know that sum of angles of quadrilateral is 360°
find value of x which is equal to 75°
then find all its angles

Answer 2

As the angle sum property says that sum of all angles of a quadrilateral is equal to 360°

So,

x + x + 10 + x + 20 + x + 30 = 360

4x + 60 = 360

4x = 300

x = 75

First angle :- 75
second angle :- 85
Third angle :- 95
Fourth angle :- 105