Question

Write the equation of the circle with centre (0, 0) and radius 8.
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Answer 1

y^2 + x^2 = 8^2

Explanation:

Mathematically the equation of a circle is written as;

(y-a)^2 + (x-b)^2 = r^2

Where (a, b) = (0,0)

r = 8

Substituting these values, we have ;

y^2 + x^2 = 8^2

x^2 + y^2 = 64