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AleksandrR [38]
3 years ago
7

If two planes intersect then they intersect in exactly how many lines?

Mathematics
1 answer:
Tems11 [23]3 years ago
5 0
Hello :
<span>If two planes intersect then they intersect in exactly in one line</span>
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The center of a circle is at (2, −5) and its radius is 12.
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Answer:

The equation of the circle is (x - 2)² + (y + 5)² = 144 ⇒ A

Step-by-step explanation:

The form of the equation of the circle is (x - h)² + (y - k)² = r², where

  • r is the radius of the circle
  • h, k are the coordinates of the center of the circle

Let us solve the question

∵ The center of the circle is at (2, -5)

→ From the rule above

∴ h = 2 and k = -5

∵ The radius of the circle is 12

∴ r = 12

→ Substitute the values of r, h, and k in the form of the equation above

∵ (x - 2)² + (y - -5)² = (12)²

∴ (x - 2)² + (y + 5)² = 144

∴ The equation of the circle is (x - 2)² + (y + 5)² = 144

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Step-by-step explanation:

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Step-by-step explanation:

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