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ethan62211
13.02.2020 •
Mathematics
PLEASE HELP ME
Given an isosceles triangle with legs measuring 10 inches and base measuring 18 inches, what is the cosine of one of the base angles?
A.0.900
B.0.555
C.0.316
D.0.100
E.1.800
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Ответ:
Yw
Ответ:
B=4
C=5
Substitute 3 in for 'a' in the equation, and 5 in for 'c' in the equation to get 17.