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Mathematics
Problem
Which one of the following angles cannot have a complementary angle? a)
65
∘
65^{\circ}
6
5
∘
b)
90
∘
90^{\circ}
9
0
∘
c)
120
∘
120^{\circ}
12
0
∘
d)
25
∘
25^{\circ}
2
5
∘
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