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Solve for 14,16,16 <3a lot of points!

Solve for 14,16,16 <3a lot of points!-example-1
User Pikaling
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Answer:

14. x² + (y + 1)² = 156.25

15. (x + 4)² + (y + 5)² = 400

16. (x + 6)² + (y - 2)² = 1

Explanation:

14.

Center: (0, -1)

Circumference: 25π

circumference = 2πr

2πr = 25π

2r = 25

r = 12.5

(x - 0)² + (y - (-1))² = (12.5)²

x² + (y + 1)² = 156.25

15.

Center: (-4, -5)

Area: 400π

area = πr²

πr² = 400π

r² = 400

r = √400

r = 20

(x - (-4))² + (y - (-5))² = 20²

(x + 4)² + (y + 5)² = 400

16.

Center: (-6, 2)

Area: π

area = πr²

πr² = π

r² = 1

r = 1

(x - (-6))² + (y - 2)² = 1²

(x + 6)² + (y - 2)² = 1

User Likk
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