Quadrilaterals (trapeziums)：練習問題

What is the name of a quadrilateral that has exactly one pair of opposite sides that are parallel?

In a quadrilateral \(PQRS\), the side \(PQ\) is parallel to the side \(SR\). The side \(PS\) is not parallel to the side \(QR\). Based on these properties, which of the following must be the correct name for quadrilateral \(PQRS\)?

Which of the following is a property of a trapezium?

The figure below shows a quadrilateral. Side \( AB \) is parallel to side \( DC \). Side \( AD \) is not parallel to side \( BC \). The length of the upper base \( AB \) is \( 8 \text{ cm} \) and the lower base \( DC \) is \( 12 \text{ cm} \). What is the name of this quadrilateral and what is the difference in length between its bases in millimetres?

A 2-D shape is a quadrilateral with only one pair of opposite sides that are parallel. What is the name of this shape, and what are the parallel sides specifically called?

A quadrilateral \( PQRS \) has only one pair of parallel sides, which are sides \( PQ \) and \( RS \). Name this shape and identify its upper and lower bases.

In a geometry lesson, students are asked to draw a quadrilateral labeled Shape X. Shape X has an upper base and a lower base that are parallel to each other, but the other two sides are not parallel.

a) What is the name of Shape X?
b) How many pairs of parallel sides does Shape X have?

Which of the following statements about a trapezium is correct according to its properties?
a) It has two pairs of parallel sides.
b) It has only one pair of parallel sides.
c) All its sides must be of equal length.

In a geometry exercise, students are asked to identify and describe a specific 2-D shape labeled Shape T.
Shape T has exactly one pair of parallel sides. The parallel sides are called the upper base and the lower base.

a) What is the name of Shape T?
b) If a 2-D shape has two pairs of parallel sides and all four sides are equal, is it still a Shape T? Why or why not?