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Mama L [17]
3 years ago
11

What is the diameter of the following?

Mathematics
1 answer:
Tamiku [17]3 years ago
4 0

Answer:

12

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

(x - 9)² + (y - 4)² = 36 ← is in standard form

with r² = 36 ⇒ r = \sqrt{36} = 6

diameter = 2 × r = 2 × 6 = 12

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