Mathematics
A quadrilateral ABCD is a trapezium if
AB = DC
AD = BC
∠A + ∠C = 180°
∠B + ∠C = 180°
Rectilinear Figures
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Answer
In a trapezium the sum of co-interior adjacent angles = 180°.
From figure,
∠B and ∠C are adjacent angles.
∴ ∠B + ∠C = 180°
Hence, Option 4 is the correct option.
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