If an exterior angle of a triangle is 70° and two interior opposite angles are equal, the measure of each of these angles is:

60°

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120°

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110°

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35°

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Solution

The correct option is D 35°
Let the two interior opposite angles be x.
Using exterior angle property.
x + x = 70°
2x = 70°
x= 35°
The correct answer to this question is option C.

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An exterior angle of a triangle is 80^o and two interior opposite angles are equal. Measure of each of these angle is:

105^{o}

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