1.
Using the result in ( a ) , draw a line through Y perpendicular to X Z on the figure constructed in ( a ) .
2.
Given a rectangle of dimensions 3 cm x 4 cm . If this rectangle is a scale drawing to a scale of 1 : 250 , find its actual area in m2 .
3.
Draw the graphs of y+3x = 2 and y - 3 x = 6 from x = -3 to 2 on the graph paper provided .