Get the area of the dog houses.

Since it is stated that the dog houses will be rectangular, you use the formula:

`A_(rec)=l*w`

` `

or simply multiply the dimensions.

`A_s` = area of the smaller house

`A_s = 2*1 = 2 sq. ft`

`A_l` = area of the larger...

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Get the area of the dog houses.

Since it is stated that the dog houses will be rectangular, you use the formula:

`A_(rec)=l*w`

` `

or simply multiply the dimensions.

`A_s` = area of the smaller house

`A_s = 2*1 = 2 sq. ft`

`A_l` = area of the larger house

`A_l = 4*2 = 8 sq. ft`

To solve how many greater is the larger house, subtract the area of the smaller from the area of the larger houes.

`A_l - A_s = 8 - 2 = 6`

Therefore, the larger house is greater by 6 sq. ft.