The four angles in a quadrilateral are in the ratio 1:2:4:5, then the measure of the greatest angle is _____ *
1 point
30°
180°
150°
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Answer:
answer 180
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Answer:
1x+2x+4x+5x=360°(angle sum property of quadrilateral)
12x=360°
x=360/12
x=30°
hence the four angles are
30,60,120,150
therefore greatest angle was 150
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