1,040
edits
Changes
From Karnataka Open Educational Resources
→Concept # 2.Properties of quadrilaterals
# There are certain characteristic properties by which a quadrilateral is identified.
# There are certain characteristic properties by which a quadrilateral is identified.
# A quadrilateral is a plane closed figure having 4 sides and 4 angles.
# A quadrilateral is a plane closed figure having 4 sides and 4 angles.
# The sum of all 4 angles of any quadrilateral always equals to 360 degrees.
# The sum of all 4 interior angles of any quadrilateral always equals to 360 degrees.This is called interior angle sum property of a quadrilateral.
# The sum of all 4 exterior angles of any quadrilateral equals 360 degrees. This is called exterior angle sum property of the quadrilteral.
# The opposite angles of any quadrilateral are supplementary.
# The opposite angles of any quadrilateral are supplementary.
# If any 3 angles of a quadrilateral are known the fourth angle can be found using angle sum property.
# If any 3 angles of a quadrilateral are known the fourth angle can be found using angle sum property.
