Reflection of orthocentre in sides lies on the circumcentre

作者：nichas

This property can be very deceptive in solving some problems. Better we can know it. Best part is that the property is so obvious and yet not known in general.

探索資源

Khayyam's Solutions for a Cubic Equation
Riemann and Trapezoid Sums
Opposite angles of cyclic quadrilateral
Complex rotation
Modeling Distributive Property

探索主題

Pythagoras or Pythagorean Theorem
正切線或正切
極限值
曲線描繪
周長

Reflection of orthocentre in sides lies on the circumcentre

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