alexmundo7 alexmundo7
  • 21-12-2018
  • Mathematics
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The circumstances of Z is 84cm. What is the length of XY (the mirror arc)

The circumstances of Z is 84cm What is the length of XY the mirror arc class=

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jimrgrant1 jimrgrant1
  • 21-12-2018

Answer:

B

Step-by-step explanation:

arc length = circumference × fraction of circle

                 = 84 ×[tex]\frac{90}{360}[/tex] = 21 cm


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