Answer:
Green circle= 4 pi or 12.56. Blue circle=0.79 or 0.25 pi. Yellow circle= 6.25 pi or 19.63. Orange= 2.25 pi or 7.07.
Step-by-step explanation:
π (Pi) times the Radius squared: A = π r2
or, when you know the Diameter: A = (π/4) × D2
or, when you know the Circumference: A = C2 / 4π
Example: What is the area of a circle with radius of 2 m ?
Radius = r = 2
Area = π r²
= π × 2²
= 3.14159... × (2 × 2 )
= 12.56 m² (to 2 decimal places)
or you can keep it like:
=4 π m²
If you wanted to be exact, you would use pi.
Thank you!!
Correct me if I'm wrong please!
