This product involves zero. So, you don't have to bother and compute all the factor, because if you multiply anything by zero you get zero.
7-n
the 7 comes before the n in the equation
In getting the area of and equilateral triangle, you must first consider that all of its sides are congruent and that is 3 inches, so the formula in getting the area is height form its base so in getting its height you must use the pythagorean theorem by dividing the triangle so the hypotenuse of it is 3 and the base of 1.5inches, so the height is 4.77 inches then the area is 7.15 sqr.inch
