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    Mathematics
    Grade9
    Easy

    Question

    In circled dot P shown at the right, angle Q P R approximately equal to angle R P S. Find the indicated measure. Length of stack Q R S with overparenthesis on top

    1. 52 feet    
    2. 42 feet    
    3. 68 feet    
    4. 58 feet    

    hintHint:

    Arc length = equals fraction numerator theta over denominator 360 end fraction cross times 2 cross times pi cross times r

    The correct answer is: 42 feet

      Arc measure of QRS = 360 – 60 = 300 degrees
      Length of arc QRS = (fraction numerator 300 over denominator 360 end fraction) cross times 2cross times 3.14 cross times 8 = 41.87 feet

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