2006 AIME I Problems/Problem 7
Problem
An angle is drawn on a set of equally spaced parallel lines as shown. The ratio of the area of shaded region to the area of shaded region is 11/5. Find the ratio of shaded region to the area of shaded region
Solution
Let: The set of parallel lines...perpendicular to x-axis & cross x-axis at 0, 1, 2... The base of area A is at x = 1. One side of the angle be the x-axis. The other side be y = x-h... as point of the angle isn't on parallel lines Then... By similar method, D/A seems to be 408.