Concept explainers
The number of sides of the given
Answer to Problem 42PPE
The polygon has 9 sides.
Explanation of Solution
Given:
The sum S of the measures of interior angles of a polygon with n sides can be found using given formula:
Sum of polygon’s interior angles is 1260 degrees.
Calculation:
The variable that is needed to be solved for in the formula is n i.e. the number of sides.
The number of sides of polygon will be:
Hence, the polygon has 9 sides.
Chapter 2 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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