Determine the area of an isosceles trapezium to the nearest tenth in which cm and cm.
is an isosceles trapezoid in which cm and cm. Determine the area of.
First, draw two perpendicular line segments from and to as follows:
Since , , and , then is a rectangle. This means that cm, so cm. Use Pythagoras' theorem to find .
The area of a trapezoid is given by the formula , where and are the lengths of the bases, and is the height. Find the approximate area of trapezoid as follows:
Thus, the area of trapezoid is approximately .