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The measure of one of the exterior angles of a triangle is `100^(@)`. Which of the following is definitely the measure of one of the interior of that triangle?A. `50^(@)`B. `60^(@)`C. `70^(@)`D. `80^(@)` |
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Answer» Correct Answer - D If the measure of one of the exterior angles is `100^(@)`, then its supplement is the measure of one of the interior angles of the triangle. The measure of the required angle `=180^(@)-100^(@)=80^(@)` Hence, the correct option is (d). |
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