Use the Given Information to Find the Cosines of Angles $A B C$

question 17

Multiple Choice

Use the given information to find the cosines of angles in $A B C$ . $a = 13$ cm, $b = 12$ cm, $c = 5$ cm

• A) \(\cos A = 0.689\) , \(\cos B = 0.749\) , \(\cos C = 0.082\)
• B) \(\cos A = 0.859 , \cos B = 0.601 , \cos C = 0.993\)
• C) \(\cos A = 0.929\) , \(\cos B = 0.779\) , \(\cos C = 0.082\)
• D) \(\cos A = 0\) , \(\cos B = 0.385\) , \(\cos C = 0.923\)
• E) \(\cos A = 0.005\) , \(\cos B = 0.539\) , \(\cos C = 0.854\)

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Definitions:

Middle Childhood

A developmental stage that typically covers the age range from 6 to 12 years, marked by significant growth in cognitive, physical, and social domains.

Physical Activities

Physical activities involve movements that increase heart rate and energy expenditure, maintaining or improving physical fitness and health.

Physical Activity

Any bodily movement produced by skeletal muscles that requires energy expenditure, including activities undertaken while working, playing, or performing daily tasks.

Middle Childhood

A developmental stage that typically encompasses ages 6 to 12, characterized by increased physical, cognitive, and social capabilities.