Given $a = 12 , b = 5$ , And $c = 15$

question 20

Multiple Choice

Given $a = 12 , b = 5$ , and $c = 15$ , use the Law of Cosines to solve the triangle for the value of $C$ . Round answer to two decimal places.

• A) \(60.34 ^ { \circ }\)
• B) \(117.82 ^ { \circ }\)
• C) \(80.45 ^ { \circ }\)
• D) \(17.15 ^ { \circ }\)
• E) \(45.04 ^ { \circ }\)

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Definitions:

Japan Invaded China

This refers to several instances of military incursions by Japan into China, most notably the Second Sino-Japanese War (1937-1945), which was part of the broader conflict of World War II.

1930s

The decade from 1930 to 1939, marked globally by the Great Depression, economic challenges, and the lead-up to World War II.

Germany Invaded Poland

The event on September 1, 1939, marking the beginning of World War II, when Nazi Germany initiated an attack on Poland, leading to the swift involvement of other nations.

Declare War

The formal act by which a sovereign nation announces and initiates a state of war against another sovereign nation.