galla181313 galla181313
  • 08-07-2021
  • Mathematics
contestada

work out the area of a circle with a diameter of 1.8

Respuesta :

christosknowles christosknowles
  • 08-07-2021
The area of a circle is calculated by doing πr^2.

The radius (r) is half of the diameter.

So you do 1.8/2=0.9.

Then π x 0.9^2.

The answer is 2.54469004941.

Round this to your needed decimal place. If there is none, I would round to two decimal places so the answer would be 2.54.
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