Question

The center of Circle P is located at the origin. The circumference of the circle passes through Point C (2,5).

Find the length of the radius of Circle P.

Answer 1

@M_lowreen

Answer 2

In classical geometry, the radius of a circle or sphere is the length of a line segment from its center to its perimeter. The name comes from Latin radius, meaning "ray" but also the spoke of a chariot wheel. The plural of radius can be either radii (from the Latin plural) or the conventional English plural radiuses.

Answer 3

Formula: Diameter: d = 2. Now divide answer by 2 to get radii.

Answer 4

is it 7

Answer 5

d= 2r

Answer 6

C= rd

Answer 7

21

Answer 8

(x - x0)2 + (y - y0)2 = r2

Answer 9

(x0, y0) is the center of the circle
and r is its radius. So you can substitute in (2, 5) for the center (x0, y0) and you will get an equation involving x, y and r.

Answer 10

so ok i did it so it squared root of 29

Answer 11

Sure

Answer 12

It's sqrt of 29

Answer 13

She knows?