alylaurent alylaurent
  • 12-09-2017
  • Mathematics
contestada

I need to know how to do question 24 part b

I need to know how to do question 24 part b class=

Respuesta :

AJGreen
AJGreen AJGreen
  • 12-09-2017
Area of a circle : π * r²
4+1 = 5

π * 5² = 78.53
π * 4² = 50.27

78.53 - 50.27 = 28.26

The area of the border is 28.26 ft²
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