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Mathematics
Mathematics
Problem
In a triangle, the sum of interior angles is (a)
90
∘
90^\circ
9
0
∘
(b)
180
∘
180^\circ
18
0
∘
(c)
270
∘
270^\circ
27
0
∘
(d)
360
∘
360^\circ
36
0
∘
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