I have an equilateral triangle with one exterior angle that equals 124 degrees all the interior angles are unknown how do I find them

56 degrees please read explanation so you understand

Step-by-step explanation:

The triangle is equilateral so all the interior angles are the same that means if you find value of one of the angles you will get all of them.

Its hard to explain without a pic but one side of the triangle is straight and a   straight line has an angle measure of 180 degrees so if you do 180-124 you will get your answer. I hope this helped you.

addition

step-by-step explanation:

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.