Write the distance of the following plane from the origin: `2x-y+2z+1=0`

Explanation

Distance of a plane from origin can be given as,

`D = |d/sqrt(a^2+b^2+c^2)|`

In the given equation,

`a = 2, b = -1, c = 2, d =1`

`D = |1/sqrt(4+1+4)| = |1/sqrt9|`

`D = 1/3` units, which is the required distance.