Question

find x in following figure​

Answer 1

Answer:

• 130°+y=180°. (supplementary angles)

y=50°

• 100°+z=180°. (supplementary angles)

z=80°

• X+50°+80°=180°. (sum of angles of triangle)

x+130°=180°

X=50°

Answer 2

Answer:

130+100=230

230/90=2.55