Equation of circle

find an equation of the circle with indicated properties:
a. center at (-3,5), diameter 20.
b. center at origin and diameter 16.

Result

a = (Correct answer is: 1) Wrong answer
b = (Correct answer is: 1) Wrong answer

Solution:

Solution in text a =
Solution in text b =







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#1
Math student
I want the steps

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Pythagorean theorem is the base for the right triangle calculator. For Basic calculations in analytic geometry is helpful line slope calculator. From coordinates of two points in the plane it calculate slope, normal and parametric line equation(s), slope, directional angle, direction vector, the length of segment, intersections the coordinate axes etc.

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