PEAZIT Aha card
Go straight to resources ↓Rearrange a parallelogram without changing its area
Cut off the end triangle and move it to the other side. You obtain a rectangle with the same base and height.
| Relation | Meaning |
|---|---|
| S = a × h | Multiply base by its perpendicular height. |
| S = 7 × 4 | Substitute the lengths. |
| S = 28 cm² | Rearrangement preserves the 28 cm² area. |
One worked example
- S = a × hMultiply base by its perpendicular height.
- S = 7 × 4Substitute the lengths.
- S = 28 cm²Rearrangement preserves the 28 cm² area.
Watch out: The height depends on the chosen base. Match them correctly.
Goal, prerequisites and card origin
What you will learn: Calculate area using perpendicular height.
What you need first: Rectangle area.
An original PEAZIT working card. Independent expert review and effectiveness testing have not yet taken place. · v1
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Cut off the end triangle and move it to the other side. You obtain a rectangle with the same base and height.