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Find standard equation of circle calculator identifies:

A) Center and radius of a circle
B) Circle's circumference
C) Circle's area
D) Circle's diameter

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Final answer:

The standard equation of a circle can be found by knowing its center and radius. The circumference, area, and diameter of a circle can be calculated using specific formulas.

Step-by-step explanation:

Center and Radius of a Circle:
To find the equation of a circle, we need its center and radius.

The standard equation of a circle is (x - h)^2 + (y - k)^2 = r^2, where (h, k) is the center and r is the radius.

Circumference of a Circle:
The circumference of a circle can be found using the formula C = 2πr, where C represents the circumference and r represents the radius of the circle.

Area of a Circle
The area of a circle can be found using the formula A = πr^2, where A represents the area and r represents the radius of the circle.

Diameter of a Circle:
The diameter of a circle is the distance across the circle passing through the center.

It can be found using the formula d = 2r, where d represents the diameter and r represents the radius of the circle.

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