CPM Homework Banner

Home > CCG > Chapter 12 > Lesson 12.2.1 > Problem 12-61


Triangle P, Q, R, is drawn with an interior point, S. Segments P, S, and S, R, are drawn. Angle S, P Q, is 40 degrees. Angle S, R, Q, is 35 degrees, and angle P, S, R, is 140 degrees.In at right, what is ? Explain how you found your answer.  

There are multiple ways to find the measure of .

Examine the quadrilateral . The sum of the interior angles should be .

Check your answer! Is your answer for   and possible?