Answer:
108°
Explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
2a is an exterior angle of the triangle, thus
2a = a + 10 + 44 = a + 54 ( subtract a from both sides )
a = 54 , thus
2a = 2 × 54 = 108°
98°
The sum of two interior angles in a triangle is equal to an exterior angle's measure
a + 10 + 44 = 2a add like terms
a + 54 = 2a subtract a from both sides
54 = a and since the measure of exterior angle is 2a
2 × 54 = 98°
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