Consider the trapezoid below. What does h stands for?  

This refers to the parallel sides of a trapezium.

Consider the trapezoid below. What does a stands for?  

Consider the trapezoid below. What does b stands for?  

Consider the trapezoid below. Which of the following sides are the legs? 

This refers to the nonparallel sides of a trapezium

What type of trapezium has all two right angles?

Consider the trapezoid below. Which of the following sides are the bases? 

What type of trapezium has all its legs congruent?

What type of trapezium has none of its size and angles equal in measure?