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

Explain how a square is. a rectangle

Explain how a square is. a rhombus

Explain how a square is. a parallelogram

Explain how a square is. a quadrilateral

Explain how the human ear works.

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 10500m^2 and the perpendicular distance between the two parallel sides is 100m, find the length of the side along the river.

Determine the truth value of the following statement. A quadrilateral is a parallelogram if and only if its opposite sides are parallel.

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

Explain the functioning of a photo cell. Give its two uses.

Prove that line segment joining the middle points of two non-parallel sides of a trapezium is parallel to the parallel sides.