???????????? "trapezium" ????????
me thank that be misspell av obsoleet Brit werd for "TRAPAZOID"
Trapazoid...2 parallel sides...most draw it with tesse sides horizontal
IN jenral, the parallel lines kan be differ lengths.
& the start & end av the top line kan differ from the bottom line
##### Area=hite*[(base leng) + (top leng)] /2
hite=2.9, base=11, top=9
area=2.9*(9+11)/2
area=2.9*10=29