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PQ is parallel to RS. Calculate the value of x.

Mathematics
JAMB 1979

PQ is parallel to RS. Calculate the value of x.

  • A. 20o
  • B. 40o
  • C. 60o
  • D. 80o
  • E. 100o
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Correct Answer: Option B
Explanation

< D = 180º - 100º

= 80º (< on a str. line)

< S = 60º - alternate angle

x = 180º - (80º + 60º)

180º - 140º = 40º

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