45. INSPECTIONS Mrs. Sanchez is inspecting a shed to determine if it is safe to use for storing football equipment. Mrs. Sanchez mapped the top view of the ceiling walls
of the shed on a coordinate plane. If one of the walls lies from (-6, 11.5) to
(2,9.5) and the second wall lies from (-1,-2.5) to (2, 9.5), are the walls
perpendicular? Explain your reasoning.

Two trains leave a station on different tracks. the tracks make an angle of 130°, with the station as a vertex. the first train travels 100 km and makes its first stop at point a, while the second train travels 200 km and makes it first stop at point b. how far apart are the trains when both are at their first stop? round the answer to the nearest integer. a) 65 km b) 139 km c) 224 km d) 275 km