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In the context of a triangle, which term describes the relationship between an exterior angle and its adjacent interior angle?

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Question

In the context of a triangle, which term describes the relationship between an exterior angle and its adjacent interior angle?

Options

  • Congruent

  • Complementary

  • Supplementary

  • Vertically opposite

MCQ
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Solution

Supplementary

Explanation:

The exterior angle and its adjacent interior angle form a linear pair and thus are supplementary, summing to 180°.

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