Consider the figure at right showing the supply and demand for a product. 80 The consumer surplus is a triangular area. Recall that the area of a triangle equals (1/2 base x height) 75- The value of the consumer surplus is 70- 65- O A. $300. 60- S O B. $500. 55- 50- O C. $800. 45- Price ($) 40- O D. $120. 35- 25- 20- 15 10 D 0- 10 20 25 30 35 40 45 50 Quantity