Explain how this figure is a trapezium. Which of its two sides are parallel? (Fig 3.32)

In the given figures which of the following two lines are parallel and why?

Two identical prisms are placed in the path of white light, such that their bases are parallel [Fig.3.23]. What will be the nature of the emergent light?

Which pari of lines in the fig. are parallel? Given reasons

Mohan wants to buy a trapezium shaped field.Its side along the river is parallel to and twice the side along the road.If the area of this field is 10,500 cm^2 and the perpendicular distance between the two parallel sides is 100cm,find the length of the side along the river.

The shape of top sufrace of a table is a trapezium.Find its area if its parallel sides are 1 m and 1.2 m and perpendicular distance between them is 0.8 m.

In a triangle, the sum of its two sides is..... third side.

Take identical cut outs of congruent triangles of sides 3 cm ,4cm , 5cm Arrange them as shown . You get a trapezium (check if) which are the parallel sides here ? should the non -parallel sides be equal ? You can get two more trapeziums using the same set of triangles. Find them out and discuss their shapes.

In the fig. state which lines are parallel and why?