Question

If the three angle of a quadrilateral is three angle of a quadrilateral is 30degree,60 degree and 90 degree then find the fourth angle

Answer 1

Answer:

Sum of all 4 angles of a quadilateral is 360°.

assume fourth angle be y

so 360 = 30 + 60 + 90 + y

y = 180°

Answer 2

Answer:

Step-by-step explanation:

30+60+90+fourth angle = 360

180+ fourth angle= 360

fourth angle = 360-180

fourth angle = 180