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A rectangle's length is 3 cm more than twice its width w, and its perimeter is 54 cm. Check that w = 8 cm works. What is the length?

Class 7Checking Solutions by TrialSimple Equations
  • A16 cm
  • B19 cm
  • C27 cm
  • D11 cm

Step-by-Step Solution

Length = . Perimeter = ✓. So the length is 19 cm. (27 cm is half the perimeter.)
Answer: B) 19 cm

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