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A regular polygon has 9 sides. What is the size of one of its exterior...

Mathematics
WAEC 2005
A regular polygon has 9 sides. What is the size of one of its exterior angles?
  • A. 20o
  • B. 40o
  • C. 90o
  • D. 140o
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Correct Answer: Option B
Explanation
Exterior angle \(=\frac{360}{n}\) where n = no of sides
\(=\frac{360}{9}=40^{\circ}\)
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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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WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
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WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
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