Quizzes & Puzzles20 mins ago
General equation for a circle
13 Answers
....... this is going to sound daft, but since I can't draw you a diagram.......
Say the wall is the y-axis, and the floor is the x-axis............ roll a perfect circle right into the angle, so that the wall and the floor are both tangents.
Can anyone tell me what the General equation for that circle would be?
Say the wall is the y-axis, and the floor is the x-axis............ roll a perfect circle right into the angle, so that the wall and the floor are both tangents.
Can anyone tell me what the General equation for that circle would be?
Answers
Best Answer
No best answer has yet been selected by The Builder. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.If you take the exact perpendiculars (right angles) from where the carpet just touches each wall and draw them back until they meet, that will be the centre of the circle. Both distances shoud be the same and that will be the radius r and the centre at (r,r).
Equation should be (x-r)^2 + (y-r)^2 =r^2
Equation should be (x-r)^2 + (y-r)^2 =r^2
Chucko ........ it's a general equation I'm looking for, so it would cover any r (radius)
Pruders and Nightmare......... thank you very much. I thought it was going to be that. I just wondered if, when that expression is expanded, it might become simpler :o(
So, for a radius of 1, I would have to do it the long way. To explain, I just want to arrive at an expression for a value of y, for whatever value of x that I give it.
Pruders and Nightmare......... thank you very much. I thought it was going to be that. I just wondered if, when that expression is expanded, it might become simpler :o(
So, for a radius of 1, I would have to do it the long way. To explain, I just want to arrive at an expression for a value of y, for whatever value of x that I give it.
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