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10 September, 23:43

What is the equation of a circle centered at the origin with radius 15?

O A. x+y=15

O B. x + y) - 225

O c. x + y = 15

O D. x2 + y2 = 225

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Answers (1)
  1. 11 September, 03:38
    0
    D

    Step-by-step explanation:

    The equation of a circle centred at the origin is

    x² + y² = r² (where r is the radius)

    Here r = 15, thus

    x² + y² = 15², that is

    x² + y² = 225 → D
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