Question
In the figure, GHJK is a rectangle with a perimeter of 60 cm. GM, GJ, LM and LJ are straight lines. The length of GH is twice the length of HJ.
  1. What is the area of rectangle GHJK?
  2. Given that the area of triangle LJM is 30 cm2, find the area of triangle KGM.
4 m
(a)

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(b)

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In the figure, GHJK is a rectangle with a perimeter of 60 cm. GM, GJ, LM and LJ are straight lines. The length of GH is twice the length of HJ.
  1. What is the area of rectangle GHJK?
  2. Given that the area of triangle LJM is 30 cm2, find the area of triangle KGM.