MOUNTAIN CLIMBING A team of climbers must determine the width of a ravine in order to set up equipment to cross it. If the climbers walk 25 feet along the ravine from their crossing point, and sight the crossing point on the far side of the ravine to be at a 35 angle, how wide is the ravine? (Example 4) 35 25 ft 28. SNOWBOARDING Brad built a snowboarding ramp with a height of 3.5 feet and an 18 incline. (Example 4) a. Draw a diagram to represent the situation. b. Determine the length of the ramp. 29. DETOUR Traffic is detoured from Elwood Ave., left 0.8 mile on Maple St., and then right on Oak St., which intersects Elwood Ave. at a 32 angle. (Example 4) a. Draw a diagram to represent the situation. b. Determine the length of Elwood Ave. that is detoured