Volume of a regular square frustum
Calculate the volume, lateral surface area, and total surface area of a frustum of a regular square pyramid using its bottom and top side lengths and height.

| Volume V | |
| Lateral Area F | |
| Surface Area S |
| \(\normalsize Truncated\ square\ pyramid\\ (1)\ volume:\hspace{45px} V={\large\frac{1}{3}}(a^2+ab+b^2)h\\ (2)\ lateral\ area:\ F=2(a+b)\sqrt{({\large\frac{a-b}{2}})^2+h^2}\\ (3)\ surface\ area:\ S=F+a^2+b^2\\\) |
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