A student is finding the measures of the angles in a triangle that have the ratio 1:3:5. Place a check where her mistake lies.

Answer 1

Since you haven't provided anything to "check", I will simply supply the solution.

The ratio given means that there is a total of 9 parts to the sum, i.e. 180 degrees.

9x = 180

x=20

and the angles are 20, 60 and 100.