SOLUTION: three angles of a quadrilateral are given 90, 145, and 78 what is the forth angle?
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Question 708529
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three angles of a quadrilateral are given 90, 145, and 78 what is the forth angle?
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solver91311(24713)
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The sum of the interior angles of any quadrilateral is 360.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it