Question

Three angles of a quadrilateral are given. Find the fourth angle.98°, 50°, 90°°

Answer 1

Answer:

sum of all angles of quadrilateral=360°

now, let fourth angle be x. then,

98°+50°+90°+x= 360°

238+x= 360°

x= 360-238

x= 122°

So fourth angle=122°

Answer 2

Answer:

X = 122°

Step-by-step explanation:

x + 98° + 50° +90° = 360°

x + 238° = 360°

x = 360° - 238°

x = 122°