Two of the angles in a triangle measure 78° and 15°. What is the measure of the third angle?

Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter3: Math Models
Section3.4: Solve Geometry Applications: Triangles, Rectangles, And The Pythagorean Theorem
Problem 3.73TI: One angle of a right triangle measures 56°. What is the measure of the other small angle?
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