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A Trapezium and its properties (view source)
Revision as of 21:53, 17 December 2013
, 21:53, 17 December 2013→Learning objectives
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==Concept # 4. Isosceles trapezium==
==Concept # 4. Isosceles trapezium==
===Learning objectives===
===Learning objectives===
−# A trapezium in which non-parallel sides and base angles are equal is called as an Isosceles Trapezium.
+# A trapezium in which non-parallel sides are equal is called as an Isosceles Trapezium.
# The diagonals of an isosceles trapezium are equal.
# The diagonals of an isosceles trapezium are equal.
−# Area of isosceles trapezoid is given by<math>(a+b)/2 X h</math> , where a and b are the lengths of the parallel sides and h is the distance (height) between the parallel sides.
+# An isosceles trapezium has one line of reflection symmetry. This line connects the midpoints of the two bases.
+# Both pairs of base angles of an isosceles trapezium are congruent.
+# Pairs of angles in an isosceles trapezium that do not share a base are supplementary.
+# Area of isosceles trapezium is given by<math>(a+b)/2 X h</math> , where a and b are the lengths of the parallel sides and h is the distance (height) between the parallel sides.
===Notes for teachers===
===Notes for teachers===