Pre-Calculus Practice Problem 134

Pre-Calculus - the runway 3 At a certain point the angle of elevation of the top of a tower which stands on level ground is 30.0 o At a point 100

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Unit 4, Activity 4, Real-Life Problems Involving Oblique Triangles Blackline Masters, Advanced Math-Pre-Calculus Page 132 Comprehensive Curriculum, Revised 2008 For each problem Draw a picture and identify the known quantities. Solve using the appropriate law. Use significant digits. 1. A twelve meter long loading ramp that makes a 25 o angle with the horizontal is to be replaced by a ramp whose angle of inclination is only 10 o . How long will the new ramp be? 2. A pilot approaching a 3000 meter runway finds that the angles of depression of the ends of the runway are 14.00 o and 20.00 o . How far is the plane from the nearer end of
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Unformatted text preview: the runway? 3. At a certain point, the angle of elevation of the top of a tower which stands on level ground is 30.0 o . At a point 100 meters nearer the tower, the angle of elevation is 58.0 o . How high is the tower? 4. The Johnsons plan to fence in their back lot shown below. If fencing costs $4.50 a foot, how much will it cost? 5. To find the distance between two points A and B, on opposite sides of a swamp, a surveyor laid off a base line AC 25.0 meters long and found that ∠ BAC = 82 o and ∠ BCA = 69 o . Find AB 30.50 feet 128.0 o 50.25 ft....
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This note was uploaded on 10/10/2011 for the course MAC 1147 taught by Professor German during the Fall '08 term at University of Florida.

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