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Online Geometry Problem 879: Square, Midpoint, Diagonal, Ratio 3:1, Angle Measure. Level: High School, Honors Geometry, College, Mathematics Education

In a square ABCD, E is the midpoint of BC and F is a point on AC so that CF = 3AF. Find the measure of angle DEF.

 

Geometry Problem: Square, Midpoint, Diagonal, Ratio 3:1, Angle Measure
 

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