In the adjoining figure △ ADC is an isosceles triangle
D, E, F are the mid-point of the sides BC, CA and AB respectively of ΔABC, then ΔDEF is congruent to triangle
In the figure, given below, triangle ABC is right-angled at B: ABPQ and ACRS are squares.Prove that :
(i) Δ ACQ and Δ ASB are congruent.
(ii) CQ =BS.