Here is a triangular pyramid and its net. The lateral faces are congruent triangles. The base (shaded) is an equilateral triangle. (All lengths are in centimeters.) (a) Find the area of the base of the pyramid. 2 cm (b) Find the area of one lateral face of the pyramid. 2 cm (c) Use the net to find the lateral surface area of the pyramid. The base is not included. 6.9 cm 2 (d) Use the net to find the total surface area of the pyramid 8 cm