kochamcie2014
kochamcie2014 kochamcie2014
  • 26-03-2020
  • Mathematics
contestada

Work out the area of a circle with a radius 6.2cm, take n/pi to be 3.142 and give your answer to 2 decimal places.

Work out the area of a circle with a radius 62cm take npi to be 3142 and give your answer to 2 decimal places class=

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terrielawson terrielawson
  • 26-03-2020

Answer:

Step-by-step explanation:

Area is pi times r squared.  I don't know how to write that on the keyboard.  Take your pi(3.142) times the radius(6.2)squared.  Pemdas tell us to do exponents first, so 6.2 squared is 38.44.  To square a number, just multiply it times itself.  So now, we have pi(3.142) times the squared radius(38.44).  So, 3.142X38.44=

120.778  Second place is seven followed by eight.  Round up.  120.78

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