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====== [[Deriving formula for area of a kite]] ======
====== [[Deriving formula for area of a kite]] ======
==== Concept : Trapezium ====
======[[A Trapezium and its properties]]======
====== [[Deriving formula for area of a trapezium]] ======
====== [[Construction of Trapezium]] ======
====== [[Construct an isosceles trapezium and study its properties]] ======
A trapezium in which non-parallel sides are equal is called as an Isosceles Trapezium. The diagonals of an isosceles trapezium are equal. 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.
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