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The diagram shows a circle centre O. if <STR = 29º and < RST = 46º, Calculate...

Mathematics
WAEC 2017

The diagram shows a circle centre O. if <STR = 29º and < RST = 46º, Calculate the value of <STO.

  • A. 12\(^o\)
  • B. 15\(^o\)
  • C. 29\(^o\)
  • D. 34\(^o\)
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Correct Answer: Option B
Explanation

SOT = 2 x 46 (< at the centre is twice < at circumference) = 92

2x + 92 = 180( sum of

x = \(\frac{180- 92}{2}\) = 44º

< STO = 44º - 29º

= 15\(^o\)

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Post UTME Past Questions Agent
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
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Post UTME Past Questions Agent
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Your School's Whatsapp Group - Join Us now