Geometry
Triangle & quad area
Name: Date:
Find the area. Lengths are in cm; the dashed line is the height.
1 cm²
2 cm²
3 cm²
4 cm²
5 cm²
6 cm²
7 cm²
8 cm²
Free · Grade 6 · Bases to 30 cm
Area of triangles and quadrilaterals worksheets
Working on area of triangles and quadrilaterals? Print this sheet as it is, or change the level and questions first.
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Ready to printArea of triangles and quadrilaterals
The answer key prints on a separate page.
What's on this sheet
The one mistake this standard is about is using a slant side as the height, so the figures never label a slant side at all. The height is dashed and carries a right-angle mark where it meets the base, which is a picture that answers "which number is h?" honestly rather than leaving it to be guessed.
Why this sheet works
A parallelogram uses exactly the arithmetic its rectangle would, which is the whole reason it is taught this way — and exactly why a child who measures the slant edge gets a number that is too big. Mixing the four figures on one sheet is the hardest setting, because deciding which formula applies comes before applying it.