The map of a walking trail is drawn on a coordinate grid with three points of interest. The trail starts at R(−3, 2) and goes to S(2, 2) and continues to T(2, −5). The total length of the walking trail is

units. (Input whole numbers only.) (3 points)

The map of a walking trail is drawn on a coordinate grid with three points of interest The trail starts at R3 2 and goes to S2 2 and continues to T2 5 The total class=