Which formula represents how to find r in a polar coordinate?

Here's the

r = √ ( x2 + y2 )

To convert from Cartesian Coordinates (x,y) to Polar Coordinates (r,θ):

1. r = √ ( x2 + y2 )

2. θ = tan-1 ( y / x )

I hope it's helpful!

step-by-step explanation:

infinity is the answer