Answer: C. 1/2 (2 3/4)(7/8)
Step-by-step explanation: To find the area of a triangle, the formula is A = 1/2(lw). The length of the triangle is (2 3/4), and the height is (7/8). Since this is basically a half rectangle, we need to divide this all by day, which is the same thing as multiplying by 1/2.