Construct a triangle PQR with side PQ = 80, and angle PQR =
QPR = 60°_ (Show all construction lines).
(i)        Find the lengths PR and QR.
(ii)       Inscribe a circle in the triangle PQR.
(iii)      Name the triangle PQR.            (b)       Draw the box below and use it to construct an ellipse. State the
method used.