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The measures of the three angles of a quadrilateral are 65, 75 and 85. The measure of the fourth angle is 1 point 65 75 85 135 |
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Answer» Answer: 135 Step-by-step explanation: LET 4th angle = a the SUM of the ANGLES of QUADRILATERAL = 360 => 65+75+85+a = 360 => 225+a = 360 => a = 360-225 = 135 |
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