To find:
The measure of an interior angle and the measure of an exterior angle for the given regular
Answer to Problem 12.9EP
Each exterior angle of a heptagon is approximately 51.4 degrees.
Each interior angle of a heptagon is approximately 128.6 degrees.
Explanation of Solution
Given:
A regular ploygon: Heptagon.
Concept used:
Each exterior angle of a regular polygon with n sides is given by formula
Each interior angle of a regular polygon with n sides is given by formula
Calculation:
We know that a heptagon is a regular polygon with 7 sides, so value of n is 7.
Therefore, each exterior angle of a heptagon is approximately 51.4 degrees.
Therefore, each interior angle of a heptagon is approximately 128.6 degrees.
Chapter CSR Solutions
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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