posted by Help!! on .
the measures of the interior angles of a triangle are x,y and 2x respectively. if the triangle is isosceles, what is one possible measure of an angle of this triangle, in degrees?
The sum of the angles: 180 = 3x + y
If it's an Isosceles triangle then two angles are the same:
Either: y=x, or y=2x
Pick one then substitute and solve.