If you dilate a circle with radius of 15 cm and the scale factor is , what is the new radius? What is the area of the circle?
If the scale factor is 2, the new radius of the circle would be 15 cm x 2 = 30 cm.
The area of the circle can be calculated using the formula A = πr^2, where r is the radius of the circle.
The area of the circle with a radius of 30 cm would be:
A = π(30 cm)^2
A = π(900 cm^2)
A ≈ 2827.43 cm^2
So, the area of the circle after dilation is approximately 2827.43 cm^2.