Find m
PLEASE HELP 10 POINTS!!
2 answers:
Use the cos rule
cos^-1(18^2+28^2-12^2 divided by 2*18*28
Which is 16.99 degrees, which is 17 (option d)
Answer:
<em>(D). 17 in.</em>
Step-by-step explanation:
c² = a² + b² - 2abcosC
cosC =
m∠C =
(
)
m∠C =
(
)
<em>m∠C </em>=
(
) ≈<em> 17 in.</em>
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