tjgov tjgov
  • 09-09-2015
  • Mathematics
contestada

calculate the area of a circle with radius of 5cm

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caitlinkeekee
caitlinkeekee caitlinkeekee
  • 09-09-2015


Area = (Pi)r^2                                  (pi is 3.14159......)

A = (pi) x 5^2

A = 25(pi)

Area = 78.54 cm^2 (to 2 d.p)

Answer Link
faizu
faizu faizu
  • 09-09-2015
Area of circle = [tex] \pi r^{2} [/tex]
=22/7 X 5X5
=450/7
=64.2857142.........

therefore area of the circle = 64.2857142......cm
Answer Link

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