The second angle of a triangle is double the first. The third angle is 40 less than the first. Find the degrees of the first 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 3.74TI: One angle of a right triangle measures 45°. What is the measure of the other small angle?
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The second angle of a triangle is double the first. The third angle is 40 less than the first. Find the degrees of the first angle.
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