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Vilka [71]
4 years ago
11

Question on the paper

Mathematics
1 answer:
lutik1710 [3]4 years ago
6 0

Answer:

AB = 178 meters.

Step-by-step explanation:

See the attached diagram.

The surveyor needs to measure the distance AB across the lake.  

Now, beginning at E, he locates the midpoint C of AE and the midpoint D of BE.

Now,measurement CD = 89 meters.

Now, in triangle Δ EAB, CD is the line connecting midpoints of the sides EA and EB, hence CD will be parallel to AB and 2CD = AB ...... (1)

Now, AB = 2 × 89 = 178 meters. (Answer)

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