How do you solve the area for a trapezoid?

A= 1/2 (b1+b2) • h
Add one base by the other base then multiply the height and 1/2

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?