Yur answer to ur question is 30
There are 3 terms in this expression. You can determine this answer by knowing that terms are either a single number or variable or numbers and variables multiplied together. Here's a picture example below:
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The length of line BC is 16. 12
<h3>How to determine the value</h3>
We have that;
- Line BD = 12
- Line AD = 5
- Line BC = unknown
Let's line BA, using Pythagorean theorem
BA =

BA =

BA =

BA = 13
Now, let's find BC
cos 30 = line BA/ line BC
0. 8660 = 14/ BC
cross multiply
BC = 14/0.8660
BC = 16. 12
Thus, the length of line BC is 16. 12
Learn more about Pythagorean theorem here:
brainly.com/question/654982
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