Circles

Front

What is the standard equation of a circle with center (h, k) and radius r?

Back

(x - h)² + (y - k)² = r²

Front

What is the center of the circle given by the equation (x - 3)² + (y + 5)² = 36?

Back

C(3, -5)

Front

What is the radius of the circle given by the equation (x + 2)² + (y - 4)² = 49?

Back

7

Front

Write the equation of a circle with center (0, 0) and radius 3.

Back

x² + y² = 9

Front

What is the diameter of a circle with radius 10?

Back

20

Front

What is the center and radius of the circle given by the equation (x - 1)² + (y + 2)² = 25?

Back

C(1, -2), r=5

Front

Write the equation of a circle with center (4, -8) and radius 5.

Back

(x - 4)² + (y + 8)² = 25

Front

What is the equation of a circle with radius 4 and center (0, 8)?

Back

x² + (y - 8)² = 16

Front

What is the equation of a circle with center (-1, -1) and radius 3?

Back

(x + 1)² + (y + 1)² = 9

Front

What is the center of the circle given by the equation x² + y² = 16?

Back

C(0, 0)