Given an isosceles triangle ABC 1, the angle is 50 degrees. Find the other angles.

Option number 1.

Let’s make the assumption that the angle known from the condition is the one opposite the base.

Let us determine what each of the angles will be, what is at the base, when it is known from the condition that the angle opposite to it is 50 °:

(180 – 50): 2 = 130: 2 = 65.

Answer: Both angles will be 65 °.

Option number 2.

Let’s make the assumption that the angle known from the condition is the one that is located at the base.

Then the second there is also equal to 50 °.

Let’s determine what the angle opposite the base will be:

180 – 2 * 50 = 180 – 100 = 80.

Answer: One angle is 50 ° and the other is 80 °.