A camera is set up at the opposite end of the pool even with the pool's edge. Solve problems involving angles of elevation and depression. She sees the landing spot at an angle of depression of 34. Lesson Menu Five-Minute Check (over Lesson 8–4) CCSS Then/Now New Vocabulary Example 1:Angle of Elevation Example 2:Angle of Depression Example 3:Use Two Angles of Elevation or Depression.
Then/Now You used similar triangles to measure distances indirectly. Use angles of elevation and depression to find the distance between two objects. How far is the audience member from the base of the platform, if the angle of elevation from the audience member's line of sight to the top of the acrobat is 27°? If the cliff is 40 feet above the water and the angle of depression is 52°, what is the horizontal distance from the seal to the cliff, to the nearest foot? The distance between the dolphins is JK or JL – KL. Example 1 Angle of Elevation CIRCUS ACTS At the circus, a person in the audience at ground level watches the high-wire routine. Example 3 Use Two Angles of Elevation or Depression Answer: The distance between the dolphins is JK – KL. What is the horizontal distance between the hot air balloon and the landing spot to the nearest foot? Multiply both sides by x. 8 4 practice a angles of elevation and depression explanation videos. Divide both sides by tan Simplify. Use the right triangles to find these two lengths.
A 5-foot-6-inch tall acrobat is standing on a platform that is 25 feet off the ground. Find the distance between the two cars to the nearest foot. This project is a great end-of-the-year activity for your high school geometry students, as it reviews many topics that are taught throughout the year. PlanBecause are horizontal lines, they are parallel. Round to the nearest tenth. Divide each side by tan. Make a sketch of the situation.
The pool itself is 50 feet in length. Multiply each side by KL. JL – KL ≈ –, or about 8 meters. She observes two parked cars. Over Lesson 8–4 5-Minute Check 1 A B C D Use a calculator to find tan 54°. 20 ft C. 44 ft D. 58 ft Luisa is in a hot air balloon 30 feet above the ground. Example 2 Angle of Depression Answer: The seal is about 31 feet from the cliff. Get answers and explanations from our Expert Tutors, in as fast as 20 minutes. Example 2 Angle of Depression Let x represent the horizontal distance from the seal to the cliff, DC.
4 D Find m B to the nearest tenth of a degree if cos B = and B is an acute angle. It can also be broken up into the individuals tasks, to give as an end of unit assessment activity for each topic. Thus, and because they are alternate interior angles. Example 2 Angle of Depression DISTANCE Maria is at the top of a cliff and sees a seal in the water. One car is parked along the curb directly in front of her window and the other car is parked directly across the street from the first car. Answer & Explanation. 1 Make sense of problems and persevere in solving them. Stuck on something else?