To find the area of triangle ABC, Jen first drew a square around the figure. Two sides of the square passed through the points B and C. The other two sides met at point A. Draw Jen's square, and complete the explanation on how you can use the square to find the area of triangle ABC.

The sides of the square are also the sides of three right triangles. Find the area of the square, and find the area of each triangle.

Area of triangle ABC = Area of square − area of the other triangles =
[(0.5)(3)(5) + (0.5)(3) + (0.5)(2)] = square units