1. Sketch: (x - - 2)² + (y – 5) = 16 circle:
2. Given the equation of the
(x – 8) + (y + 1)² = 81
Determine the center of the circle
(3 points)
and the radius
10
8
-10 8
5
4
2
46
10
radius. (2 points)

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6