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KatRina [158]
3 years ago
6

Find BC. PLEASEEE HELP

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
3 0

Answer:

Concept: Geometric Identities

  1. We want BC
  2. We will use geometric identities to get our value
  3. We have BA and AC and angle !A
  4. Hence arccos(89)= 21/x
  5. Hence X=25 km B
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