Answer:
=> Apply law of cosine
=> input value
=> simplify
=> calulcation
=> apply rule: Distance must be greater than 0
which is about 14.51828
Last month, Teresa earned a total of $175 and saved 18 cents of every dollar she earned. Determine the amount she saved from her
2 answers:
You might be interested in
Answer:
28 m
Step-by-step explanation:
The longer side can be found using the Law of Cosines. The semi-diagonals are of length 12 and 20 m, and the angle between them facing the long side is 180° -60° = 120°.
c^2 = a^2 +b^2 -2ab·cos(C)
c^2 = 12^2 +20^2 -2·12·20·cos(120°) = 144 +400 +240 = 784
c = √784 = 28
The longer side is 28 meters.
