DrillPre-K to K
Shape recognition worksheets
Circle or color the circles, squares, triangles and rectangles hidden in each row.
Area of triangles, parallelograms and trapezoids
Find the area of a triangle, parallelogram or trapezoid from its marked base and height.
About this worksheet
Each shape is drawn to scale with its base or bases labeled and the height shown as a dashed line with a right-angle mark, so students pick the height and ignore the slanted side. Triangles may lean, with the height inside the base, and every area is a whole number.
Choose one shape or a mix, and the units. The solved example shows the formula with the numbers put in, and the answer key writes every area.
Printing
US Letter or A4, portrait: choose your paper size above. Print at 100 percent (actual size). Use "Black and white" for the copier, or "Color" for display pages and mini books.
Popular versions
Ready-made settings for common topics.
- Area of triangles from base and height worksheets
- Area of parallelograms from base and height worksheets
- Area of trapezoids from two bases and height worksheets
- Triangle, parallelogram and trapezoid area with smaller numbers worksheets
- Triangle, parallelogram and trapezoid area with larger numbers worksheets
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