Grade 7 · Year 8 · Class 7 · ages 12–13 · Geometry
Surface area of cuboids: Grade 7 practice
Finding the total area of all six faces of a box. Eight questions at a time, instant feedback and a mastery score from 0 to 100.
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The idea in one minute
A cuboid has three pairs of equal faces. Add lw + lh + wh and double it.
Try these on paper first
One question at each level. Tap a question to see the answer.
Easy A cuboid is 6 cm long, 4 cm wide and 4 cm high. Its surface area in cm² is
Answer: 128
Medium A cuboid is 3 cm long, 2 cm wide and 7 cm high. Its surface area in cm² is
Answer: 82
Challenge A cuboid is 14 cm long, 10 cm wide and 3 cm high. Its surface area in cm² is
Answer: 424
More ways to practise surface area of cuboids
- Printable surface area of cuboids worksheet with an answer key (new questions every time)
- All Grade 7 practice · Geometry worksheets
Related skills
- Circles, circumference and area (Grade 7)
- Area of rectangles, triangles and parallelograms (Grade 6)
- Angles in triangles, on a line and round a point (Grade 6)
- Pythagorean theorem (Grade 8)
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FAQ
Surface area of cuboids: questions
What grade is surface area of cuboids?
It is usually taught in Grade 7 (Year 8 in England, Class 7 in India, ages 12–13), though schools and countries differ. Try the grade above or below if it feels too hard or too easy.
What does a surface area of cuboids question look like?
For example: "A cuboid is 3 cm long, 2 cm wide and 7 cm high. Its surface area in cm² is" The answer is 82. A cuboid has three pairs of equal faces. Add lw + lh + wh and double it.
What should I learn before and after surface area of cuboids?
Before it, try circles, circumference and area (Grade 7). After it, move on to pythagorean theorem (Grade 8).
How can I get better at surface area of cuboids?
A cuboid has three pairs of equal faces. Add lw + lh + wh and double it. Practise a little every day, read the hint after each wrong answer, and use the printable worksheet when you want to write it out.
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