In parallelogram ABCD, angle A is acute and AB = 5. Point E is on AD with AE = 4 and BE = 4. A line through B, perpendicular to CD, intersects CD at F. If BF = 5, find EF.
In parallelogram ABCD, angle A is acute and AB = 5. Point E is on AD with AE = 4 and BE = 4. A line through B, perpendicular to CD, intersects CD at F. If BF = 5, find EF.
In parallelogram ABCD, angle A is acute and AB = 5. Point E is on AD with AE = 4 and BE = 4. A line through B, perpendicular to CD, intersects CD at F. If BF = 5, find EF.