Question
PSLE
The perimeter of figure DEFGH is (5 f + 11) cm. The perimeter of square DEFG is 20 cm.
  1. Find the perimeter of triangle DGH in terms of f.
  2. The perimeter of figure DEFGH is 56 cm. What is the value of f? Give your answer in cm.
3 m
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(b)

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PSLE
The perimeter of figure DEFGH is (5 f + 11) cm. The perimeter of square DEFG is 20 cm.
  1. Find the perimeter of triangle DGH in terms of f.
  2. The perimeter of figure DEFGH is 56 cm. What is the value of f? Give your answer in cm.