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andrew-mc [135]
3 years ago
14

A, B & C form the vertices of a triangle.

Mathematics
1 answer:
kirza4 [7]3 years ago
6 0
<h3>Answer:  20.3</h3>

Work Shown:

tan(angle) = opposite/adjacent

tan(B) = AC/AB

tan(67) = x/8.6

8.6*tan(67) = x

x = 8.6*tan(67)

x = 20.2603303460843  ... make sure your calculator is in degree mode

x = 20.3  .... rounding to 3 significant figures

see diagram below

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