Topics
Measurement - Area
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CanadaON
Grade 6

Connect triangles and rectangles

Lesson
Practice

Interactive practice questions

Use this diagram of a rectangle to answer the following question.

Which dimension of the rectangle forms the base of the triangle?

Width

A

Length

B
Easy
< 1 min

Use the picture to answer the following questions about the area of the rectangle and the triangle.

Easy
1 min

Use the picture to answer the following questions about the area of the rectangle and the triangle.

Easy
< 1 min

Use the picture to answer the following questions about the area of the rectangle and the triangle.

Medium
< 1 min
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Outcomes

6.M2.04

Determine, through investigation using a variety of tools and strategies, the relationship between the area of a rectangle and the areas of parallelograms and triangles, by decomposing (e.g., cutting up a parallelogram into a rectangle and two congruent triangles) and composing (e.g., combining two congruent triangles to form a parallelogram)

6.M2.05

Develop the formulas for the area of a parallelogram (i.e., Area of parallelogram = base x height) and the area of a triangle [i.e., Area of triangle = (base x height) รท 2], using the area relationships among rectangles, parallelograms, and triangles

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