Question
In the figure, DEFG is a rectangle with a perimeter of 72 cm. DJ, DF, HJ and HF are straight lines. The length of DE is twice the length of EF.
  1. What is the area of rectangle DEFG?
  2. Given that the area of triangle HFJ is 54 cm2, find the area of triangle GDJ.
4 m
(a)

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(b)

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In the figure, DEFG is a rectangle with a perimeter of 72 cm. DJ, DF, HJ and HF are straight lines. The length of DE is twice the length of EF.
  1. What is the area of rectangle DEFG?
  2. Given that the area of triangle HFJ is 54 cm2, find the area of triangle GDJ.