Find the length of the radius of a circle that passes through the point (4, -2) and has a center at the origin.

2

2

20

@cwrw238

Question

Find the length of the radius of a circle that passes through the point (4, -2) and has a center at the origin.



2

2

20

@cwrw238

gorv · Answer

u know distance formula

anonymous · Answer

if you can solve it you will get medal and i will fa you

anonymous · Answer

no i don't and i meant fan it was a typo

gorv · Answer

r=$$\sqrt{(4-0)^2+(-2-0)^2}$$

anonymous · Answer

i looked at that post you did and i did it ano a caculator i did 4+ -2 = 2

gorv · Answer

4^2=16 
(-2)^2=4
sqrt(20)=4sqrt5

anonymous · Answer

so the awenser is 2 sqrt5

gorv · Answer

sorry yeah 2 sqrt 5     .....not 4

anonymous · Answer

i knew what you meant but i still fanned you and gave you a medal this question is closed