Question

if the angles of quadrilateral are x,x+10*,x+20*,x+30* then what are the angles?

Answer 1

As given that angle are of a quadrilateral

So,

=> Sum of all angle of a quadrilateral is equal to 360

That's y

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

4x + 60 = 360

4x = 360 - 60

4x = 300

x = 75

So ,

* First angle

x = 75

* Second angle

x + 10

75 + 10 = 85

* Third angle

x + 20

75 + 20 = 95

* Fourth angle

x + 30

75 + 30 = 105

Answer 2

Sum angle of quadrilateral = 360

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

4x + 60 = 360

4x = 300

x = 75

x + 10
75 + 10 = 85

x + 20
75 + 20 = 95

x + 30
75 + 30 = 105