A box has six faces in three matching pairs, so you work out three rectangles and double the total. Taking them in pairs is what stops one getting missed.
Select your difficulty
Pick more than one for a sheet that mixes them.
The preview can look cramped on a phone. The PDF and printed sheet come out normal.
Adding six faces one at a time and losing one along the way. Three pairs, doubled, gets there with half the arithmetic.
Also called surface area of a rectangular prism or surface area of a box.
What you can put on this worksheet
Surface area of a prism
Find the surface area. — a rectangular prism 7 by 8 by 6→ 292
Lateral area of a prism
The prism stands on its base: the top and bottom faces are the bases. Find the lateral area. — a rectangular prism 2 by 6 by 8→ 128
Which measurement goes on the net
A box is 11 long, 7 wide and 3 tall. On its net, how long is the edge marked with a question mark? — the net of a box, labeled ?→ 7
Questions about these worksheets
Yes. Every surface area of a prism sheet is free to print and free to download as a PDF. There is no account to make, no email to hand over and no limit on how many you take.
Yes. The answer key prints on a second page, and you can choose whether it shows each question beside its answer or just the answers in a list.
Yes. Print straight from the page, or download the PDF and print that. The sheet is laid out for paper rather than squeezed off a screen, so there is room to work under each question, and the answer key comes out on its own page.
Geometry is usually taken around 9th or 10th grade, though schools vary and plenty of students meet it earlier or later. Pick the difficulty rather than the grade: the easy level suits a first lesson on it, the hard level suits review before a test.
Yes, as many as you like. The questions are built fresh each time rather than picked from a fixed set of files, so pressing Generate gives a new sheet. That is what you want for a second class, a retake, or two students sitting next to each other.
That is the closest comparison, and Kuta Software is good software. It is also paid software you install on a computer. These worksheets run in a browser tab for free, with no account and nothing to install. Like Kuta, the surface area of a prism questions are generated when you ask for them rather than pulled from a fixed set of files, so two classes never get the same sheet, and the answer key comes with it.
Yes. There are two levels, and you can tick more than one for a sheet that mixes them, in which case the questions come out easiest first. The harder levels are not just larger numbers: they ask for something the easy ones do not.
You pick from 3: surface area of a prism, lateral area of a prism and which measurement goes on the net. Tick as many as you want and set how many of each, or let it spread them evenly.
Adding six faces one at a time and losing one along the way. Three pairs, doubled, gets there with half the arithmetic.