Question

c) Find the value of x in the following
40
とで
g
13
123​

Answer 1

Answer:

The interior angle of angle a =180°-110°=70°

the interior angle of angle b=180°-120°=60°

the sum of the angles of a triangle is 180°

70°+60°+x°=180°

130°+x°=180°

x°=50°

therefore x =50°.