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fieryanswererft

Answer:

Center: 254.5

Area: 254.5

Explanation:

  • Equation: x² + (y + 3)² = 81

Circle formula:

  • (x - h)² + (y - k)² = r²

where (h, k) is the center points, r is radius

Rewriting the equation:

  • (x -0) ² + (y - (-3))² = 9²

Identify the following:

  • (h, k) = (0, -3), radius: 9

Area of Circle:

  • π(radius)²  =  π(9)²  =  81π = 254.46 = 254.5

General equation

  • (x-h)²+(y-k)²=r²

So

  • (x-0)²+(y+3)²=81
  • (x-0)²+(y+3)=9²

Radius=9

  • Center=(0,-3)

Area

  • πr²
  • 81π units²

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