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How many different rectangles can you draw, that has an area of 28 cm sq. ? pls help me

asked
User Kohls
by
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1 Answer

7 votes

Answer:

You can draw three rectangles:

1- 28 * 1.

2- 14*2

3- 7*4

Explanation:

We have a total area of 28. If we use only integer numbers, we can find all the divisors of 28. The possible rectangles will be organized with them, taking into account that the product of them, which means the area should be 28.

28 = 1*2*2*7

We can organize them as follows:

R1: 28 = 1*28

R2: 28 = 2*14

R3: 28 = 4*7

Finally, we can conclude that there are only three possibilities

1- 28 by 1.

2- 14 by 2

3- 7 by4

The perimeters will be:

Perimeter 1 = 2x1 + 2x28 = 58

Perimeter 2 = 2x2 + 2x14 = 32

Perimeter 3 = 2x4+2x7 = 22

answered
User Elbimio
by
8.2k points

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