Question

Please answer this question correctly. Please​

Answer 1

Step-by-step explanation:

According to problem, the angles are 2x°, 3x° and (5x -20)°

So, Sum of angles of a ∆ = 180°

or, 2x + 3x + (5x - 20) = 180

or, 10x - 20 = 180

or, 10x = 200

or, x = 20

hence, biggest angle = 5x - 20

= 5(20) - 20

= 100 - 20

= 80°