Answer:
50°, 80° and 20° could all be possible angles
Step-by-step explanation:
Given that every triangle has three angles that must add up to 180°, there could be a few different combinations with an isosceles triangle that will add up to 180°.
Since two angles of an isosceles triangle must be the same, then you can have the following combinations:
80° + 80° + x = 180°, or x = 20°
80° + 2x = 180°, or x = 50°
So, the possibilities out of the angles given are 80°, 20° and 50°.
