Question

The tree angles of a quadrilateleld are 60°,80°and 120° find the fourth angle

Answer 1

Answer:

angles of quadrilateral = 60° , 80° , 120°, x°

so,

60+80+120+x = 360°

260° + x = 360°

x = 360°- 260°

x = 100° ans..

Answer 2

Answer:

60 +80+120+x=360

140+x=360

x=360 -140

220