A rectangular has a length of 10 cm and a parameter of 30 cm.  Find the width of the rectangular?

A rectangular has a length of 10 cm and a parameter of 30 cm.  Find the width of the rectangular?

  • (A) 5 cm
  • (B) 10 cm
  • (C) 15 cm
  • (D) 20 cm
  • Solution: The perimeter of a rectangle is given to be 30 cm.
  • Given that the length is 10 cm and using the formula P = 2(L + W), we have
  • 30 = 2(L + W)
  • 30 = 2(10 + W)
  • 30 = 20 + 2W
  • 2W = 10
  • W = 5 cm
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Related MCQs:

 ‘NATO’ is an abbreviation of:

  • (A) North Atlantic Treaty Organization
  • (B) Non-Aligned Treaty Organization
  • (C) Non-Aligned Trading Organization
  • (D) North American Transport Organization

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