Answer:
The distance from point P to point V = 17 ft.
Explanation:
A rectangular prism is simply a cuboid,
The image describing the cuboid described, as obtained from from internet is attached to this solution. (It is redrawn to avoid the solution being removed due to violation of community guidelines)
From the image, PR, PS and SR form a right angled triangle on the case of the cuboid.
With PR as the hypotenuse side, using Pythagoras theorem,
(PR)² = (PS)² + (PR)²
(PR)² = 12² + 9² = 144 + 81 = 225
PR = √225
PR = 15 ft.
On a second evaluation, the required length, PV, PR and RV form another right angled triangle with PV as the hypotenuse side, using Pythagoras theorem again,
(PV)² = (PR)² + (RV)²
(PV)² = 15² + 8² = 225 + 64 = 289
PV = √289
PV = 17 ft.
Hope this Helps!!!