What is one method to determine the area of a trapezium?

To determine the area of a trapezium, one effective method is to use the formula that takes the average of the lengths of the two parallel sides (often referred to as the bases) and multiplies that average by the height of the trapezium. This method is expressed as:

Area = (a + b) / 2 * h

In this context, 'a' and 'b' represent the lengths of the parallel sides, and 'h' signifies the height between these sides. This is a direct approach to finding the trapezium's area based on its geometric properties.

The option discussing dividing the trapezium by a diagonal to find the area of each triangle essentially describes a method that can be used but is more convoluted than just applying the formula directly. By determining the area of each formed triangle and then adding them, you can arrive at the total area, yet this method requires more steps and complexity.

The formula expressed with d1 and d2 pertains to the area of a rhombus or kite, not specifically useful for a trapezium. As for the last option, stating A = b1, is incomplete and does not yield an area calculation.

This understanding reinforces the correct method for finding