Conical Frustum Formulas
A conical frustum is a truncated cone with circular cross-sections.
Slant Height:
$l = √(h² + (R - r)²)$
Volume:
$V = \frac{πh}{3}(R² + Rr + r²)$
Lateral Surface Area:
$LA = π(R + r)l$
Total Surface Area:
$SA = π(R² + r²) + π(R + r)l$
Where $R$ is the bottom radius, $r$ is the top radius, $h$ is the height, and $l$ is the slant height.