Area of Polygons Worksheets
Use labeled dimensions to calculate area of polygons and explain the units.
Before you begin
Read labeled dimensions and coordinates. Recall multiplication facts and length units.
Worked example
A triangle has base 10 cm and perpendicular height 7 cm. Find its area.
- A triangle has half the area of a parallelogram with the same base and height.
Answer: 35 cm²
Check your result using the method in the example before moving to the next question.
Choose your level
- Easy: Use small whole-number measurements.
- Medium: Use larger dimensions or combine parts.
- Hard: Solve for a missing measure or explain a relationship.
Questions and answer calculations checked on 2026-09-17. How we check worksheets. Free for personal and classroom use.
Preview and print an easy set
Try six questions below, or choose a full set at your level.
1
A triangle has base 6 cm and perpendicular height 4 cm. Find its area.
2
A parallelogram has base 14 cm and perpendicular height 2 cm. Find its area.
3
A triangle has base 16 cm and perpendicular height 6 cm. Find its area.
4
A parallelogram has base 14 cm and perpendicular height 4 cm. Find its area.
5
A triangle has base 12 cm and perpendicular height 8 cm. Find its area.
6
A parallelogram has base 18 cm and perpendicular height 8 cm. Find its area.
Answer Key
1. 12 cm²2. 28 cm²3. 48 cm²4. 56 cm²5. 48 cm²6. 144 cm²