Question

The angles of a triangle are 4x, (2x + 30) and (5x - 15). Find the angles and then show
that the triangle is an equilateral triangle.​

Answer 1

Step-by-step explanation:

4x+{2x+30}+{5x-15}=180

11x+15=180

11x=165

×=165/11

=15

4x=15×4=60

{2x+30}=2×15+30

=60

{5x-15}=5×15-15

=60

thus it is an equilateral triangle

Answer 2

Answer: All angle is 60° and it is also a equilateral triangle.