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The length of a rectangle is 10 cm. If its perimeter is 28 cm, find...

Mathematics
WAEC 2022

The length of a rectangle is 10 cm. If its perimeter is 28 cm, find the area

  • A. 30cm\(^2\)
  • B. 40cm\(^2\)
  • C. 60cm\(^2\)
  • D. 80cm\(^2\)
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Correct Answer: Option B
Explanation

perimeter = 2( length + breadth) 

→ 28 = 2 (10+ b) 

14 - 10 = b

b = 4 

Area = length x breadth

10 x 4 → 40cm\(^2\)

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts