Find the area of each shaded triangle. <hr> Area of triangle A = $$\frac{1}{2}$$ x <input min="0" type="number" id ="imp5pg069q9a_1" class="lineinput" placeholder="?" /> x <input min="0" type="number" id ="imp5pg069q9a_2" class="lineinput" placeholder="?" /> = <input min="0" type="number" id ="imp5pg069q9a_3" class="lineinput" placeholder="?" /> $$cm^2$$