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Directions: Explain the following problem using the concept of triangle congruency. To measure the distance from the shore (point A) to a ship at sea (point D), the Greek mathematician instrument shown in the picture. He held rod AB vertically and sighted point D along with rod BC. Then, keeping 2CBA constant, he revolved the instrument around AB so that it Thales devised the pointed into shore. Sighting along with BC', he then located point D'. Using congruent triangles, explain how the device worked. Shore Sea

Directions: Explain the following problem using the concept of triangle congruency. To measure the distance from the shore (point A) to a ship at sea (point D), the Greek mathematician instrument shown in the picture. He held rod AB vertically and sighted point D along with rod BC. Then, keeping 2CBA constant, he revolved the instrument around AB so that it Thales devised the pointed into shore. Sighting along with BC', he then located point D'. Using congruent triangles, explain how the device worked. Shore Sea

Trigonometry (11th Edition)
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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Directions: Explain the following problem using the concept of triangle congruency. To measure the distance from the shore B (point A) to a ship at sea (point D), the Greek Thales mathematician devised the C instrument shown in the picture. He held rod AB vertically and sighted point D along with rod BC. Then, keeping LCBA constant, he revolved the instrument around AB so that it pointed into shore. Sighting along with BC', he then located point D'. Using congruent triangles, explain how the device worked. D' Shore Sea
Transcribed Image Text:Directions: Explain the following problem using the concept of triangle congruency. To measure the distance from the shore B (point A) to a ship at sea (point D), the Greek Thales mathematician devised the C instrument shown in the picture. He held rod AB vertically and sighted point D along with rod BC. Then, keeping LCBA constant, he revolved the instrument around AB so that it pointed into shore. Sighting along with BC', he then located point D'. Using congruent triangles, explain how the device worked. D' Shore Sea
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