The figure below shows a circle with diameter AB. Line CD is a tangent at D (C on AB extended). Line EA is perpendicular to AB (E on BD extended) and BF is perpendicular to AB (F on AD extended). Prove that the points E, F, and C are collinear.
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Geometry Problems
Ten problems: 1391-1400
Visual Index
Open Problems
All Problems
Circle
Diameter
Perpendicular lines
90 Degrees Angle
Tangent Line
Collinear Points
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