P, Q and R are the mid-points of the sides of an equilateral triangle XYZ. Then PQR is
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P is the mid-point of the hypotenuse AB of the right-angled triangle ABC. Prove that : AB = 2 CP.
In △ABC, AB = AC. D, E and F are mid-points of the sides BC, CA and AB respectively. Show that :
(i) AD is perpendicular to FE.
(ii) AD and FE bisect each other.