1.

What is the equation of a circle with centre of origin and radius is 6 cm?

A. x2 + y2 - y = 36
B. x2 + y2 - x - y = 36
C. x2 + y2 - 36 = 0
D. x2 + y2 - x = 36
Answer» D. x2 + y2 - x = 36


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