(x - 4)2 + (y + 6)2 = 52
what are the length of the radius and the coordinates of the center for this particular circle? watch your signs for the variables h and k.

Radius r = ±√52

Coordinates of center =

Step-by-step explanation:

Points to remember

Equation of a circle passing through the point (x1, y1) and radius r is given by

(x - x1)² + (y - y1)² = r ²

To find the radius  and coordinates of center

It is given that an equation of circle,

(x - 4)² + (y + 6)² = 52

Compare two equations,

we get  r ²  = 52

r = ±√52

(x - x1)²  = (x - 4)²  then x1 = 4

(y - y1)² = (y + 6)² then  y1 = -6

Coordinates of center = (4, -6)

step-by-step explanation:

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d. corresponding side lengths in similar triangles are proportional in length.

step-by-step explanation: