Here is the list of all the formulas used in Chapter 12 of FSc Part 1. If there is difficulty to remember these formulas then take a print of this page and see formula from this page while solving the question. After a while you will learn all formulas by heart. To download the PDF of this page see below. <PHP> $pre_file=“fsc_area_triangle_formulas”; $location=“../files/fsc/fsc_part1”; print «< HTML <img src=“$location/$pre_file.gif” alt=“PDF View” class=“mediacenter img-responsive” /> <center><p> <span class=“bs-wrap bs-wrap-button” data-btn-type=“default” data-btn-icon=“fa fa-file-pdf-o”><a href=“$location/dn.php?file=$pre_file.pdf” class=“wikilink1” alt=“$pre_file.pdf”>Download PDF</a></span> </p></center> HTML; </PHP>