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vesna_86 [32]
3 years ago
7

I need help on this question

Mathematics
1 answer:
Strike441 [17]3 years ago
5 0

Answer:

  D.  75 ft

Step-by-step explanation:

Line DE parallel to line CB makes triangle ADE similar to triangle ACB. This means corresponding sides are proportional:

  DE/AD = CB/AC

  DE = AD×CB/AC = (70 ft)×(225 ft)/(70 ft +140 ft) = (225 ft)/3

  DE = 75 ft

The distance across the lake is 75 feet.

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