Using the formula for the area of a triangle, area = 1/2 x base x height, write an expression for the area of ΔABC. This time, base your answer on the work you did in part E. Show your work.

What is the main difference between trace elements and the main elements that make up the body? 1) main elements consist of heavier atoms. 2) trace elements are only needed in small amounts. 3) trace elements consist of heavier atoms. 4) main elements are only needed in small amounts.