In ABCD, the measure of ZD=90°, BD = 20, CB = 29, and DC = 21. What is the value
1 answer:
Answer:
0.72
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you that the relation of interest is ...
Cos = Adjacent/Hypotenuse
Then the cosine of angle C is ...
cos(C) = CD/CB = 21/29
cos(C) ≈ 0.72
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What are you supposed to do?
The line is positive
The line is positive because it slants to the right.
It wouldve been negative if it slanted to the left.
