Explain how you can use the triangle sum theorem to find the measures of the angles of an equilateral triangle

The triangle Sum Theorem says that the sum of all the angles in a triangle has to equal 180 degrees. Since all three sides (and, consequently, angles) in an equilateral triangle are the same, you can divide 180 by 3 to find the measure of any angle of an equilateral triangle (60 degrees).

X= 49; x = 4step 1: foilstep 2: equal both to 0step 3: find x individually