Given that the angles of a quadrilateral are in the ratio 1:2:4:5, find the angles.

find the angles of the quadrilateral
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Add the ratios together: 12. That means the angles are 1/12, 2/12, 4/12, 5/12 of 360 degrees because the angles must add up to 360. So the angles are 30, 60, 120 and 150 degrees.

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