I’m confused on how you would find what triangle is.

First find x. The interior angles must add to 180.
(x+20)+(2x-10)+(3x+20)= 180
6x+30=180
6x=150
x=25

Now plug in the value of x to find each angle measure.
x+20
25+20
45

2x-10
2(25)-10
40

3x+20
3(25)+20
95

Because all angles are different measures, the triangle must be scalene. There is one angle greater than 90 degrees so it is obtuse.

Final Scale and obtuse

Leave your answers as radicals in simplest form. examples: 3 name: special right triangle review find the missing side lengths .