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J and M are base angles of isosceles trapezoid JKLM. If mJ = 20x + 9, and mM = 14x + 15, find mK. A. 151o B. 1o C. 29o D. 75.5o
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Dec 17, 2017
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J and M are base angles of isosceles trapezoid JKLM. If mJ = 20x + 9, and mM = 14x + 15, find mK.
A. 151o
B. 1o
C. 29o
D. 75.5o
Mathematics
high-school
Donn
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Answer: 151
Explanation:
Somasundaram Mahesh
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Dec 19, 2017
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Somasundaram Mahesh
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20x + 9 = 14x + 15
6x = 6
x = 1
So base angles are 20 + 9 means 29 degrees. To calculate the m of angle k, subtract 29 from 180:
180 - 29 = 151 degrees.
hope it helps
Skywind
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Dec 24, 2017
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Skywind
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