Topics
Measurement
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CanadaON
Grade 5

Decompose a shape into rectangles to find the area

Lesson
Practice

Interactive practice questions

The total area of this shape is $37$37 cm2.

If the area of rectangle $A$A is $15$15 cm2, what is the area of rectangle $B$B?

        $A$A        
               
                 
        $B$B        
                 
Easy
< 1min

The total area of this shape is $83$83 cm2.

If the area of rectangle $B$B is $55$55 cm2, what is the area of rectangle $A$A?

Easy
< 1min

Find the area of the given shape.

Easy
1min

Find the area of the given shape.

Easy
1min
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Outcomes

5.M2.05

Determine, through investigation using a variety of tools (e.g., concrete materials, dynamic geometry software, grid paper) and strategies (e.g., building arrays), the relationships between the length and width of a rectangle and its area and perimeter, and generalize to develop the formulas [i.e., Area = length x width; Perimeter = (2 x length) + (2 x width)]

5.M2.06

Solve problems requiring the estimation and calculation of perimeters and areas of rectangles

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