Geometry Problem 1424: Triangle, Parallelogram, Trapezoid, Area, Diagonal, Measurement

The figure below shows a parallelogram ABCD. E is a point on AD and BD intersects CE at F. If the area of triangle BCF is 9 and the area of triangle EFD is 1, find the area of quadrilateral ABFE.
 

Geometry problem 1424: Triangle, Parallelogram, Trapezoid, Area, Diagonal, Measurement, Tutoring

 


Geometric Art of Problem 1424: Sketching, Typography, iPad Apps

Geometric Art of Problem 1424: Triangle, Parallelogram, Trapezoid, Area, Diagonal, Sketching, Typography, iPad Apps, Art, SW, Tutor

See also: Typography and poster of problem 1417.