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Don't Overlook the Obvious - SlideRule - 11-27-2018 01:13 PM

from a reputable source …
The point P is any point on the circle with center O. Perpendicular lines are drawn from P to perpendicular diameters, AB and CD, meeting them at points F and E, respectively. If the diameter of the circle is 8, what is the length of EF?
… for puzzle aficionado(s).

enjoy!
SlideRule

ps: the subject line is a hint


RE: Don't Overlook the Obvious - Albert Chan - 11-27-2018 01:46 PM

EF = OP = 8/2 = 4


RE: Don't Overlook the Obvious - SlideRule - 11-27-2018 01:50 PM

(11-27-2018 01:46 PM)Albert Chan Wrote:  EF = OP = 8/2 = 4

KUDOS!

[attachment=6640]
extract from Math Wonders to Inspire Teachers and Students

BEST!
SlideRule