To figure out the area of the triangle, we must do 1/2 base times height. Which would be 1/2 of 6 times 6. Which is 18. Then to figure out the rectangle is just doing the width times the length and the same for the square. So 6 times 12 plus 6 times 6 equals 108. Then we add the triangles area and we come out with 108 plus 18 which equals 126.
The amount of money borrowed or invested is called as Principal. When you first take out a loan, the principal is the original amount you borrowed. As you pay toward that debt, the principal becomes the outstanding balance on the loan, not including interest and any fees accrued.
