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Nostrana [21]
3 years ago
11

Hello!

Mathematics
2 answers:
son4ous [18]3 years ago
8 0

Answer:

A = 1/2*6*2.57 = 7.71 km²

avanturin [10]3 years ago
6 0

Answer:

  • 7.71 km²

Step-by-step explanation:

<u>Area of triangle:</u>

  • A = 1/2bh

We have the value of b but not h.

Added auxiliary segments which help to find the value of h.

<em>See attached for details</em>

  • sin 40° = h/4
  • h = 4 sin 40°
  • h = 2.57 km

<u>The area is:</u>

  • A = 1/2*6*2.57 = 7.71 km²

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