Question

in a triangle the angles are 2x degree X + 30 degree and find the angles​ in degree

Answer 1

Answer:

sum of all angles in a triangle=180 degree

so

2x + x+30 + x-10 = 180

4x + 20 = 180

4x = 180 - 20

4x = 160

x = 160 ÷ 4

x = 40 degree

1st angle = 2x = 2 × 40 = 80 degree

2nd angle = x + 30 = 40 + 30 = 70 degree

3rd angle = x - 10 = 40 - 10 = 30 degree

Step-by-step explanation: