Radius and center for a circle equation in standard form.
The equation of a circle. Any point P with coordinates on the circumference of a circle can be joined to the centre (0, 0) by a straight line that forms the hypotenuse of a right angle triangle.
I think I've seen GCSE practice questions about equations of tangents to circles where you are given a different centre and point on the circle. For a question like this you would not need to work out the circle equation but use circle theorems and gradients of perpendicular lines.
Fun maths practice! Improve your skills with free problems in 'Write equations of circles in standard form' and thousands of other practice lessons.
Q. Write the standard equation of the circle with the given center and radius; center (0,0) and radius: 3.
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Can someone please post a detailed step-by-step procedure. Given the circle with a radius a, what is the differential equation of the circle.
Play this game to review Geometry. Write the equation of a circle with center (7, 0) with radius 3.