Pythagoras' Theorem

1) In a triangle ABC, angle B is a right angle , line AC is 32cm . In the middle of BC ,there is a point (point D).If AB=BD and BD:DC= 1:2, find BC.
2) In a triangle RPQ, angle P is a right angle , line PQ= 25cm , 5QR=8PR. Find the perimeter of triangle PQR.