22-04-2021
Mathematics

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The equation of a circle is x^2 + y^2 -9
Work out the length of the diameter

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22-04-2021

Answer:

d = 6 units

Step-by-step explanation:

If x^2 + y^2 = 9, x^2 + y^2 = 3^2 = r^2. The radius is 3 and the diameter is twice that, or d = 6 units

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