5.1 Quadrilaterals - Hindi
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TIMESTAMPS
00:00 What is a polygon?
00:22 Vertex, diagonal, adjacent sides of a polygon
01:20 Opposite sides of a polygon
01:35 Opposite angles of a polygon
01:48 Convex and concave polygons
02:56 Quadrilaterals: square, rectangle, rhombus, kite
03:51 Trapezium, isosceles trapezium
04:21 Parallelogram
04:34 Properties of a parallelogram
05:18 Parallelograms and triangles
05:43 How to prove if a parallelogram is a rectangle, a rhombus or a square