What’s on the Areas & Volumes poster
The rule, 3 worked examples, and the mistake everyone makes.
- Areas come from ordinates at a regular spacing; volumes come from areas at a regular…
- Simpson: d/3 (ends + 4 odds + 2 evens)
- Simpson's rule = Needs even strip count
- Trapezoidal rule = Any number of strips
- End area, two sections = V = L(A₁ + A₂)/2
- Common mistake: Using Simpson on an odd strip count → Even strips, odd ordinates
Educational reference. Earthwork quantities also need bulking and shrinkage factors from the contract specification.
Questions about the Areas & Volumes poster
- What’s on the Areas & Volumes poster?
- The rule, 3 worked examples, and the mistake everyone makes. Areas come from ordinates at a regular spacing; volumes come from areas at a regular…; Simpson: d/3 (ends + 4 odds + 2 evens); Simpson's rule = Needs even strip count; Trapezoidal rule = Any number of strips; End area, two sections = V = L(A₁ + A₂)/2; Common mistake: Using Simpson on an odd strip count → Even strips, odd ordinates. Educational reference. Earthwork quantities also need bulking and shrinkage factors from the contract specification.
- Who is the Areas & Volumes poster for?
- Areas & Volumes belongs to the Civil Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning surveying can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Areas & Volumes poster?
- Checking an earthworks quantity, or measuring an irregular area. A wall chart earns its place by being glanceable from where the work is happening, so Areas & Volumes belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.
- What other posters go with Areas & Volumes?
- Bearings, Contours and Setting Out a Curve sit alongside Areas & Volumes in the Civil Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.BearingsContoursSetting Out a Curve
- Is the Areas & Volumes poster free to download and print?
- Yes. Areas & Volumes downloads as a free PDF with no account, no email and no watermark, like everything else in the Civil Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Areas & Volumes poster print at?
- Areas & Volumes is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Areas & Volumes loses nothing.Printing guide
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