If the center of a circle is (1, 1), and it has a radius of 5, which is another point on the circle?
A)
(7, 1)
B)
(1, -5)
C)
(4, 5)
D)
(-2, 6)

Question

If the center of a circle is (1, 1), and it has a radius of 5, which is another point on the circle?
A)
(7, 1)	
B)
(1, -5)	
C)
(4, 5)	
D)
(-2, 6)

saylilbaby · Answer

@1895 @quin100 @Mimi_Styles @Abhisar  @perl

saylilbaby · Answer

@hartnn

saylilbaby · Answer

@Directrix

hartnn · Answer

radius is the distance from center of a circle to any point on the circle

hartnn · Answer

radius is 5
and center is 1,1

use this distance formula, d =5

$\large d=5= \sqrt{(x_1-x_2)^2 +(y_1-y_2)^2}$

where you can plug in x1, y1 as 1,1

hartnn · Answer

$\large 5= \sqrt{(1-x_2)^2 +(1-y_2)^2}$

now take each choices one by 1,
say option A,
7,1
plug in x2 =7, y2 = 1

and see if you get the distance = 5 or not :)

anonymous · Answer

D

hartnn · Answer

its not D :)

hartnn · Answer

and let sayli try to find the answer on her own!
afterall, its her question.

saylilbaby · Answer

its c

hartnn · Answer

thats correct sayli!
good work!