complementario es 90 asi q
es 90-16=74
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complementario es 90 asi q
es 90-16=74
b+a = 90
a - b = 16
a + (a+16) = 90
2a + 16 = 90
2a = 90 -16
2a = 74
a = 74/2
a = 37
90- 37 = 53
b = 53
53 + 37 = 90
53-37 = 18