The equation x squared + y squared = r squared find the equation of the circle with centre (0,0) and which contains the point (5,-2)

asked Apr 17, 2015 65.8k views

4 votes

The equation x squared + y squared = r squared

find the equation of the circle with centre (0,0) and which contains the point (5,-2)

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7 votes

$(5-0)^2+(-2+0)^2=r^2\\ 25+4=r^2\\ 29=r^2\\\\ \boxed{x^2+y^2=√(29)}$

Ulmangt answered Apr 20, 2015

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