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→Sum of the interior angles of a quadrilateral
Line 63:
Line 63:
====== [[Angle sum property of a quadrilateral]]======
====== [[Angle sum property of a quadrilateral]]======
−====== Sum of the interior angles of a quadrilateral ======
+====== [[Sum of the interior angles of a quadrilateral]] ======
−====== Sum of angles at point of intersection of diagonals in a quadrilateral ======
+====== [[Sum of angles at point of intersection of diagonals in a quadrilateral]] ======
−====== Area of a quadrilateral ======
+====== [[Area of a quadrilateral]] ======
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