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zalisa [80]
3 years ago
10

A plot of land is in the shape of a parallelogram with the dimensions shown.

Mathematics
2 answers:
kumpel [21]3 years ago
8 0
Opposite sides of a parallelogram are equal therefor we can write:-

3r + 8 = 2r + 12

3r - 2r = 12 - 8
r = 4

so the lengths of the sides are  each 20 ft

and the 2 shorter sides are of length 4(4) - 2 = 14 ft

so perimeter = 2*20 + 2*14 = 68 feet  <---- answer
LuckyWell [14K]3 years ago
8 0
3r + 8 = 2r + 12
r = 4

so
AD = BC = 3r+8 = 12+8 = 20
AB=CD = 4r-2 = 16-2 = 14

2(20+14) = 2 (34) = 68

answer
<span>b. 68 feet</span>
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