Ontario · Grade 5
G5.E2.5
Grade 5 — Use the area relationships among rectangles, parallelograms and triangles to develop and apply their area formulas.
The skill that covers it
What a student should be able to do
- Find the perimeter and area of rectangles and triangles.
- Use the area formulas for parallelograms and trapezoids.
- Decompose a composite figure to find its area.
- Work backwards from an area to a missing side length.