In an isosceles triangle, the sum of two angles is 140. What can be the angles of a triangle?

Let’s call the triangle ABC.
The sum of the two angles of a triangle = 140 °.
It can be either the sum of the angles at the base of the triangle, or the sum of the angle at the base and the angle against the base.
Let’s consider both options.
Option 1.
In an isosceles triangle, the angles at the base are equal, which means 140: 2 = 70 ° angles at the base and 180 – 140 = 40 ° angle against the base.
Option 2.
If 140 is the sum of the angle against the base and at the base. Then subtract 140 from the sum of the angles of the triangle to find out the angle at the base.
180 – 140 = 40 °.
140 – 40 = 100 ° – angle value against the base.
Answer: 70, 70, 40 or 40, 40, 100.