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B. The four angles of a quadrilateral are (20x - 30), (25x - 25), (5x +15) and (4x + 22)respectively. Find the angles. |
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Answer» Answer: 110,150,50,50 Step-by-step explanation: as we know a QUADRILATERAL can be cut into two triangles so total SUM of angles in a quadrilateral should be 180*2 = 360 so (20X - 30), (25x - 25), (5x +15) and (4x + 22) sum to 360 ===> 54X - 18 = 360 ===> x = 7 so angles 110,150,50,50 |
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