The document lists formulas for calculating the area and perimeter of common shapes including triangles, parallelograms, rectangles, trapezoids, circles, and squares. It provides the area formula for triangles as A = 1/2bh, for rectangles as A = lw, and for circles as A = πr^2. It also lists the perimeter formula for rectangles as P = 2l + 2w and the circumference formula for circles as C = πd or C = 2πr.