A rectangular 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.

Question

Glenn Mayer

Mathematics

3 February, 16:34

A rectangular 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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Anneliese · Answer 1

The land would be 100x20.

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