If in triangle DEF, the greatest angle is twice the smallest and the third angle is 20 degrees more than the smallest, what are the angles?
40o, 60o, 80o
30o, 60o, 80o
30o, 50o, 100o
20o, 40o, 40o
The biggest angle of a triangle is 10o more then twice of the smallest angle and the third angle is 10o more then the smallest angle. The three angles add up to 180o. Find the smallest angle?