Trigonometry (11th Edition)
Trigonometry (11th Edition)
11th Edition
ISBN: 9780134217437
Author: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher: PEARSON
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Question
1. Of the triangles with sides 11, 5, 9 or with sides 6, 10, 8; which is a right triangle?
2. In figure, ZDBA = 132° and ZEAC = 120°. Show that AB>AC.
E
A 120°
A
132
D
B
C
3. Let AB and BC be two consecutive sides of a regular pentagon inscribed in a unit circle (that is, a
circle of radius 1 unit). Find the value of (AB · Ac)².
Rubrics:
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Transcribed Image Text:1. Of the triangles with sides 11, 5, 9 or with sides 6, 10, 8; which is a right triangle? 2. In figure, ZDBA = 132° and ZEAC = 120°. Show that AB>AC. E A 120° A 132 D B C 3. Let AB and BC be two consecutive sides of a regular pentagon inscribed in a unit circle (that is, a circle of radius 1 unit). Find the value of (AB · Ac)². Rubrics:
4. Instruction: Prove the following statements. You may use two-column proof or in paragraph
form.
C
Given: 4JAB <KBA; <1 = 42
Prove: AABK = ABAJ
K
A
B
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Transcribed Image Text:4. Instruction: Prove the following statements. You may use two-column proof or in paragraph form. C Given: 4JAB <KBA; <1 = 42 Prove: AABK = ABAJ K A B
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