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This is the question: Write down the equation of a circle with centre (0,0) and radius 5. So is my answer correct? x² + y² = 5 √5 = √1 × √5 = 1√5
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Apr 16, 2018
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This is the question: Write down the equation of a circle with centre (0,0) and radius 5.
So is my answer correct?
x² + y² = 5
√5 = √1 × √5 = 1√5
Mathematics
high-school
Martin Peter
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you almost had it right! remember the equation of a circle is
(x - h)^2 + (y - k)^2 = r^2. the center is (h,k) and r is the radius.
(x - 0)^2 + (y - 0)^2 = 5^2
x^2 + y^2 = 25 <<< your answer
hope that helps, God bless!
StackUnderflow
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Apr 23, 2018
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