Question

The area of a trapezoid is equal to half of the product of the height and sum of the bases. How do you rewrite the expression isolating one of the bases?

Answer 1

Since the area of the trapezium is `A = (1/2) h (a + b) = h(a + b)/2` where `a` & `b` are the two bases.

All you have to do is solve for either a or b:

#a + b = 2*(A/h)=> a = 2*(A/h) - b#