Question

three angles of a quadrilateral are 130 degree 90 degree and 70 degree what will be the value of fourth angle

Answer 1

130+90+70+X=360
X=360-290
70

Answer 2

First angle = 130°
Second angle = 90°
Third angle = 70°

Fourth angle = 360 - (130+90+70)
= 360 - 290
= 70°