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lyudmila [28]
3 years ago
6

ABCD is a rectangle. The perimeter is 140 ft. AB = 40ft Find the length of AC

Mathematics
1 answer:
DiKsa [7]3 years ago
4 0

perimeter =2 (l+b)

140=2 (l+40)

140=2l+80

120/2=l

l=60

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