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fgiga [73]
2 years ago
14

Pls HELP I'LL MARK BRAINLEST

Mathematics
2 answers:
Vesnalui [34]2 years ago
6 0
Angles of a triangle add up to 180 degrees and then we take away the right angle
180-90=90
5x+5x=10x
90/10=9
x=9
coldgirl [10]2 years ago
6 0
The answer is d or 10
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Step-by-step explanation:

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