5. An equilateral triangle has a side length of 7 cm. If a perpendicular is dropped from a corner,what is the length of the perpendicular? Give the exact value.7√3a) 73 ccmb) 7√3 cmcmd) √3 cmtan30°6. Determine the exact value of cos45° xsin60⁰*2√23√2a) 2v²b) 3123d)37. For the angle 0 = 150° moving counter-clockwise in standard position, determine which primarytrigonometric ratio is positive.a) sineb) cosinec) tangentd) none are positive8. To 4 decimal places, sin18° = ?a) 0.0316b) 0.0390c) 0.3126d) 0.30909. Determine the correct simplification of the expression (1 + cos0) (1 - cose).a) 1 - sin²0b) sin²0c) cos²0d) 1 + cos²0

Since you have posted multiple questions i can do first question as per our company guidelines…

5. An equilateral triangle has a side length of 7 cm. If a perpendicular is dropped from a corner, what is the length of the perpendicular? Give the exact value. 7√3 a) 73 c cm b) 7√3 cm c) cm d) √3 cm Dotorming the exact value of coc45° tan 30°

5. An equilateral triangle has a side length of 7 cm. If a perpendicular is dropped from a corner, what is the length of the perpendicular? Give the exact value. 7√3 a) 73 c cm b) 7√3 cm c) cm d) √3 cm Dotorming the exact value of coc45° tan 30°

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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Question

5. An equilateral triangle has a side length of 7 cm. If a perpendicular is dropped from a corner,
what is the length of the perpendicular? Give the exact value.
7√3
a) 73 c
cm
b) 7√3 cm
cm
d) √3 cm
tan30°
6. Determine the exact value of cos45° x
sin60⁰*
2√2
3√2
a) 2v²
b) 312
3
d)
3
7. For the angle 0 = 150° moving counter-clockwise in standard position, determine which primary
trigonometric ratio is positive.
a) sine
b) cosine
c) tangent
d) none are positive
8. To 4 decimal places, sin18° = ?
a) 0.0316
b) 0.0390
c) 0.3126
d) 0.3090
9. Determine the correct simplification of the expression (1 + cos0) (1 - cose).
a) 1 - sin²0
b) sin²0
c) cos²0
d) 1 + cos²0

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