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Pie
3 years ago
8

a circle has a center at (3,5) the point (3,8) is on the circle what is the circumference of the circle to the nearest tenth of

a unit?
Mathematics
1 answer:
kogti [31]3 years ago
3 0
You need to use the distance formula to find the radius of the circle.

d = \sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2} \\  \\ d = \sqrt{(3-3)^2 + (8-5)^2} \\  \\ d = \sqrt{0^2+3^2} \\  \\ d = \sqrt{9} = 3

The radius is 3.

The circumference is 2 \pi r

= 6\pi \\  \\ =18.8
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3 years ago
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Vera_Pavlovna [14]

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5 0
1 year ago
Membership to a national running club is shown in the table. Which answer describes the average rate of change from Year 3 to Ye
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8 0
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