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

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