# If the angles of a triangle are represented by x, 3x + 20, and 6x, what kind of a triangle is it?

Since the sum is $x + 3 x + 20 + 6 x = 180 \implies 10 x = 160 \implies x = 16$ the angles are $16 , 68 , 96$ .Because $96 > 90$ the triangle is obtuse.