Answer:
The area is the square unit.
Let the scale factor is k.
The unit circle has area of π.
<u>Similar circle is k times the unit circle.</u>
<u>The ratio of areas is the square of the scale factor:</u>
<u>If the scale factor is r, then the area of the circle with radius of r is:</u>
<u>Since A₁ = π, the area of A₂ is:</u>