Question

x,y,z=? daca x+y =100 grade ,x+z=120 grade si y+z=140 grade ​

Answer 1

x+y =100°

x+ z=120°

y+z=140°

100°+120°+140°=360° (de 2 ori suma)

360°÷2=180° (x+y+z)

z=180°-100°=80°

y=180°-120°=60°

x=180°-140°=40°