Question

The center of a circle is at (5, –4). A point on the circle is located at (12, –4). What is the approximate circumference of the circle?

Answer 1

43.98 approximately

Explanation:

radius =
`\sqrt{ (5 - 12)^(2) + (-4+4)^(2) }`

=
`\sqrt{(-7)^(2) + 0^(2) }`

=
`√(49) = 7`

diameter = 14

Circumference = diameter x pi

= 14π = 43.98 approximately