Find the measure in degrees of the one of the other two angles.
Answer to Problem 21CCSR
The measure of the one of the other two angles is
Explanation of Solution
Given:
A roof on a house has triangular cross section with at least two angles of equal measure. One angle of the
Concept Used:
The sum of the interior angles of a Triangle is
Calculation:
The sum of the interior angles of a Triangle is
Let x be the measure of the angle with equal measure so that the sum is:
Solve for x:
The measures of the other two angles are
Thus, the measure of the one of the other two angles is
Chapter 11 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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