Question

The angle of a quadrilateral are X + X - 20 + X + 30 + 2 X then the smallest angle is

Answer 1

Answer:

since, sum of angles of quadrilateral is 360°

X+ (X-20) +(X+30) + 2x=360°

5X+10 = 360°

5x = 350°

X= 70°

X = 70°

X-20 = 50°

X+30 = 100°

2X = 140°

smallest angle is X-20 = 50° .