SOLUTION: A bicycle race follows a triangular course. The three sides of the race are 7km, 24km and 25km. What is the approximate measure of the angle opposite to
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Question 1194669: A bicycle race follows a triangular course. The three sides of the race are 7km, 24km and 25km. What is the approximate measure of the angle opposite to side 7 km? Answer by ikleyn(52775) (Show Source):
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A bicycle race follows a triangular course.
The three sides of the race are 7km, 24km and 25km.
What is the approximate measure of the angle opposite to side 7 km?
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Use the cosine rule
cos(of the angle "a" opposite to side 7 km) = = 0.96.
Angle a = arccos(0.96) = 0.2838 radians = 16.26 degrees. ANSWER
