ceolamadrid
ceolamadrid
02-06-2018
Mathematics
contestada
Please someone help me with this
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sqdancefan
sqdancefan
02-06-2018
By the rules of secants, 50° is half the sum of 20° and x.
50° = (20° + x)/2
100° = 20° + x
80° = x
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