
To find: a

Explanation of Solution
Given:
Triangle has two obtuse exterior angles.
Approach:
- Draw triangle that satisfies the conditions stated.
- Check the two angles are obtuse exterior angles.
Calculation:
Consider,
A triangle is shown below
An angle is obtuse if its lies between 90 and 180 degrees.
In this figure the interior angle of the triangle is two acute angles and an obtuse angle.
So, the exterior angle is with two obtuse angles.
Therefore, the triangle satisfies the above condition.
Chapter 3 Solutions
McDougal Littell Jurgensen Geometry: Student Edition Geometry
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