Question

Please tell me all answers fast

Answer 1

Answer:

Step-by-step explanation:

1) The sum of three interior angles of a triangle is always 180°

Here, two angles are 55°. So, the third angle will be,

= 180° - (55+55)

= 70°

2) Sum of three angles of triangle is 180°

Here, 80+70+40 = 190°

So, these angle cannot form a triangle.

3) Make this as two triangles.

50°+30°+a = 180°

a = 100°

85°+65°+b = 180°

b = 30°