Concept Check Classify each triangle in Exercises 25–36 as acute, right, or obtuse. Also...

Concept Check Classify each triangle in Exercises 25–36 as acute, right, or obtuse. Also classify each as equilateral, isosceles, or scalene. See the discussion following Example 2.

(Reference Example 2)

The measures of two of the angles of a triangle are 48° and 61°. See Figure 17. Find the measure of the third angle, x.