STEP 1: Use the ruler to draw a straight horizontal ... and draw another diagonal line to join the points and mark the angles inside the triangle. Use the scissors to cut the triangle out.

text{Area of a triangle} = \frac{1}{2} ab \sin{C}\) To calculate the area of any triangle the lengths of two sides and the angle in between are required. Rearrange the equation to make \(\sin{C}\) ...