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How many smaller rectangles are there in an area model that represents 27 times 83 Why? What are their dimensions?

Sagot :

meerkat18
The question is asking to state how many smaller rectangles are there in an area model that represents 27 time 83, base on my research and calculation, the answer is 4 having the dimensions of 20 by 80, 20 by 3, 7 by 80, 7 by 3. I hope you are satisfied with my answer and feel free to ask for more 

Answer;

4 small rectangles

That is; 20 by 80, 20 by 3, 7 by 80, and 7 by 3.

Explanation;

We have; 27 by 83

We can decompose 27 into 10s and 1s to get; 20 + 7 , and

also decompose, 83 into 10s and 1s to get; 80 + 3;

But we know area is given by length times width, thus;

we have rectangles; 20 × 80, 20 × 3, 7 × 80 and 7 × 3

-The total area will be given by the sum of the area of the four triangles that is equivalent to 83 × 27.

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