Geometry

Question Analysis

This question involves the concept of angle bisection.

 

Key Concept Explanation

An angle bisector divides an angle into two congruent (equal - sized) angles. So, the measure of the original angle is two times the measure of each of the newly - formed angles.

 

Step - by - Step Solution

1. Identify the measure of the new angles. Here, each new angle is 35.5°.

2. Use the relationship between the original angle and the bisected angles. Multiply the measure of one of the new angles by 2.

Calculation:

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