lilrel8602
07.07.2019 •
Mathematics
Arectangular piece of land with length a meters and width 80 m less than its length has the perimeter of 240 m. find the length and width of this land.
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Ответ:
240 is full perimeter.
width is 80m less than length
80+80=160 (because theres 2 width sides)
240-160=80
80/4(because 4 sides)= 20m for each side
20+80=100
20+80=100
20+0=20
20+0=20
add all the sides together and get 240 meters for the full perimeter
Ответ:
Step-by-step explanation:
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