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If angle E measures (7x -12)º, what is the measure of its complement? a. (7x-192) b. (102-7x) c. (192-7x) d. (7x-102) I don't know how to solve this! Can someone help explain it?
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If angle E measures (7x -12)º, what is the measure of its complement?

a. (7x-192)
b. (102-7x)
c. (192-7x)
d. (7x-102)

I don't know how to solve this! Can someone help explain it?

User Dknaack
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1 Answer

5 votes
a complement angle mean that make with angle E together 90 degrees

7x-12 + angle complement = 90

angle complement = 90 -(7x-12)

angle complement = 90 -7x +12

angle complement = 102 -7x

so choice b. is right sure
User Dbandstra
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