UCSS Math III 3.2.3 Example 2

Hideko is a pilot with a small two-seater plane. She took off from the airport and headed south toward her hometown. After flying for [math]70[/math] miles, Hideko turned the plane [math]40^\circ[/math] to the west to avoid a large storm. She remained on this course for [math]95[/math] miles before turning back [math]65^\circ[/math] to the east and continuing on to land near her hometown. How much farther did Hideko fly than she would have if she could have remained on her original course? Determine whether your answer is reasonable given the context of the problem.

[list=1] [*]Draw and label a sketch of the situation. [*]Find the measure of [math]\angle BCA[/math] and [math]\angle CAB[/math]. [*]Find [math]AC[/math] using the Law of Sines. [*]Find [math]AB[/math] using the Law of Sines. [*]Determine how much farther Hideko flew as a result of changing course. [*]Consider whether or not the answer is reasonable. [/list] This applet is provided by Walch Education as supplemental material for the [i]UCSS Secondary Math III[/i] program. Visit [url="http://www.walch.com"]www.walch.com[/url] for more information on our resources.