Which set of numbers forms a right triangle? 2.1, 4, 7

8, 10, 12

8, 15, 17

3.4, 4.5, 5.3

Me ! write an equation for the interior angles of this triangle that uses the triangle sum theorem

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%