SOLUTION: Spherical Water tank A water tank is in shape of a sphere with a radius of 5 feet. The tank is supported on a metal circle 4 feet below the center of the sphere. Find the rad

Algebra ->  Vectors -> SOLUTION: Spherical Water tank A water tank is in shape of a sphere with a radius of 5 feet. The tank is supported on a metal circle 4 feet below the center of the sphere. Find the rad      Log On


   

Question 1136650: Spherical Water tank
A water tank is in shape of a sphere with a radius of 5 feet. The tank is supported on a metal circle 4 feet below the center of the sphere.
Find the radius of the metal circle
Answer by ikleyn(52780) About Me  (Show Source):
You can put this solution on YOUR website!
.

Make a sketch and find there a right angled triangle.


Then apply the Pythagorean theorem.


The radius of a metal circle = sqrt%285%5E2+-+4%5E2%29 = sqrt%2825-16%29 = sqrt%289%29 = 3 feet.    ANSWER

It recalls you a (3-4-5) right angled triangle.