eosemarymart eosemarymart
  • 17-04-2017
  • Mathematics
contestada

Can someone explain number 10 to me?

Can someone explain number 10 to me class=

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Аноним Аноним
  • 17-04-2017
It is saying to find the perimeter, and to use 3.14 for pie when needed to do so.
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irspow
irspow irspow
  • 17-04-2017
Perimeter is simply the sum of all side lengths...

In this problem you have the circumference of a circle with a radius of 4m and two sides of length 8m.  Since the circumference of the circle is 2πr the perimeter is:

p=2πr+2s, given r=4 and s=8

p=8π+16 m, and since they want you to approximate π as 3.14

p=8(3.14)+16 m

p=41.12 meters
Answer Link

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