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7th Class Mathematics Perimeter and Area Question Bank Perimeter and Area

  • question_answer
    Ishika has designed a small oval race track for her remote control car. Her design is shown in the figure. What is the total distance around the track? Round your answer to the nearest whole cm.  

    A)  205 cm     

    B)        305 cm                                  

    C)  100cm           

    D)         245cm   

    Correct Answer: A

    Solution :

              Total distance around the track          = Perimeter of the given track \[=52+52+2\pi r\]             \[=52+52+2\times \frac{22}{7}\times 16\]     \[(\because \,\,r=16\,cm)\] \[=104+100.57=204.57\approx 205\text{ }cm\]


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