Question
PSLE
The perimeter of figure PQRST is (5 f + 11) cm. The perimeter of square PQRS is 8 cm.
  1. Find the perimeter of triangle PST in terms of f.
  2. The perimeter of figure PQRST is 56 cm. What is the value of f? Give your answer in cm.
3 m
(a)

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(b)

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PSLE
The perimeter of figure PQRST is (5 f + 11) cm. The perimeter of square PQRS is 8 cm.
  1. Find the perimeter of triangle PST in terms of f.
  2. The perimeter of figure PQRST is 56 cm. What is the value of f? Give your answer in cm.