Question
PSLE
The perimeter of figure QRSTU is (10 r + 16) cm. The perimeter of square QRST is 12 cm.
  1. Find the perimeter of triangle QTU in terms of r.
  2. The perimeter of figure QRSTU is 56 cm. What is the value of r? Give your answer in cm.
3 m
(a)

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(b)

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PSLE
The perimeter of figure QRSTU is (10 r + 16) cm. The perimeter of square QRST is 12 cm.
  1. Find the perimeter of triangle QTU in terms of r.
  2. The perimeter of figure QRSTU is 56 cm. What is the value of r? Give your answer in cm.