One angle of a right triangle measures 60°. The side opposite this angle measures 15 inches.
What is the length of the hypotenuse of the triangle?
Well it is a 30-60-90 triangle.
Tell me what you are confused on
We have a 30-60-90 right triangle
Side opposite 60° angle = 15
Side opposite of 30° angle = 15/√3
Side opposite the 90° angle = 2 times the side opposite the 30° angle = 2*15 / √3 = 30 / √3 = the hypotenuse
+109 
+2864 
