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A quadrilateral has angles that measure 63, 89, and 121. What is the measure of the fourth angle?

User Ajay Patel
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2 Answers

3 votes
360-all of those is 87 so 87 is the answer
User Redhatvicky
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7 votes
Uh.. Lemme see. Add up all the angle measures and then subtract them from 360. In this case, the answer is 87.
User Kowan
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