2 Triangle Tactics Copyright © 2026 Pearson Education, Inc. 5. The crew builds another ramp at another entrance to the community center. One part of the ramp is designed at a 20° angle to the ground and must be 10 feet long. How high will this section of ramp rise vertically? Round your answer to the nearest hundredth. 6. The crew is following accessibility guidelines that recommend a 1:12 slope, or a 1-foot rise for every 12 feet of horizontal distance. What is the angle of elevation of this ramp? Round your answer to the nearest hundredth. 7. The construction crew is building a ramp to reach a door that is 3 feet above the ground. The space available for the base of the ramp is 12 feet, and the crew plans to build it at a 10° angle. a. Based on the planned angle, will the ramp reach high enough to meet the door’s height? Use trigonometry to justify your answer. b. What length should the ramp base be if it must rise 3 feet at the same 10° angle?
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