Question:
Two lines, AB and AC, are drawn inside a box.
(a) X is one of the dots inside the box. Draw two lines AX and CX to complete a right-angled triangle ACX with AC = AX.
(b) Y is one of the dots inside the box. Draw two lines BY and CY to complete a trapezium ABYC where AB is parallel to CY and the length of CY is twice the length of AB.