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

Consider the trapezoid below. What does h stands for?  

Consider the trapezoid below. What does b stands for?  

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

What type of trapezium has all its legs congruent?

What type of trapezium has all two right angles?

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

This refers to the parallel sides of a trapezium.

This refers to the nonparallel sides of a trapezium

Consider the trapezoid below. What does a stands for?