The diameter of the base, the diagonal, and the lateral
\edge of the cylinder form a right triangle. Use the
\Pythagorean Theorem to find the height.
\ (Pythagorean theorem)
(Substitute
)
(Evaluate powers)
(Subtract 64 from each side)
(Simplify)
(Subtract:
)
(Take the square root of each side)
Given that diameter of a cylinder(d) = 8 inches.
\ (Substitute
)
(Divide each side by 2)
(Cancel common terms)
(Divide:
)
Volume(V):
\ (Volume of a cylinder)
(Substitute
)
(Evaluate powers)
(Multiply:
)
(Substitute
)
(Multiply:
)
The volume is approximately 753.6 cubic inches.