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

Sagot :

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.