<ol class="abc-list"><li><div class="list-item-content"><span class="list-item-text">Find the area of the quadrilateral with vertices \((4,6)\), \((3,2)\), \((-5,-1)\) and \((0,-4)\).</span></div></li><li><div class="list-item-content"><span class="list-item-text">Find the area of the pentagon with vertices \((4,9)\), \((0,-7)\), \((3,8)\), \((-8,6)\) and \((4,-1)\).</span></div></li></ol>

Find the area of the quadrilateral with vertices \((4,6)\), \((3,2)\), \((-5,-1)\) and \((0,-4)\).

Find the area of the pentagon with vertices \((4,9)\), \((0,-7)\), \((3,8)\), \((-8,6)\) and \((4,-1)\).