Find the distance from the point to

a. the origin​​b. the z-axis.
I’d be very glad if you could help me

2 answers

The points are 3,5,2
the distance to (0,0,0) is √(3^2+5^2+2^2)
For the distance to the z-axis, consider the point as lying in a plane perpendicular to the z-axis, at z=2.
The distance to (0,0,2) is √(3^2+5^2)