A circle has a diameter with endpoints C(20, -21) and D(-20, 21). Determine the equation of the circle.

x² + y² = 841

Step-by-step explanation:

Midpoint of diameter is a center of a circle.

Coordinates of midpoint are

( , )

( , )

( , )

d =

Equation of a circle with center at (h, k) and radius "r" is (x - h)² + (y - k)² = r²

~~~~~~~~~~

C(20, 21)

D(- 20, 21)

( , ) = (0, 0)

d = = √3364 = 58

r = = 29

x² + y² = 29²

x² + y² = 841

courtesan no naked yes

hope this ^_^

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on a coordinate grid, point a is at (−4.0, −2.4) and point b is at (4.0, −2.4). point b is a reflection of point a across the –axis. input either a lowercase x or i think is the right awnser

step-by-step explanation: