REMEDIAL FINAL EXAM PART 1 Plane Trigonometry

Find tan Z

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• 28 / 21
• 21 / 35
• 35 / 21

Find the indicated part of triangle ABC:

A = 40⁰, C = 72⁰ 45', c= 23.2 m; find a.

• 11.8 m

• 12.3 m

• 13.4 m

• 15.6 m

Find the indicated part of triangle ABC:

B = 36⁰ 30', a= 42.7 ft, b= 25.8 ft; find A.

• 8⁰ 44'

• 53⁰ 30'

• 58⁰ 32'

• 79⁰ 53'

Solve the triangle ABC having the given information.

a = 95 ft, b = 140 ft, c = 205 ft

•  $A:\ 66\degree$  

•  $A;\ 32\degree$  

•  $A:\ 36\degree$  

•  $A:\ 24\degree$  

 Find sinA

• 32/40
• 32/24
• 24/40
• 24/32

It is a branch of mathematics that studies the relationships between the sides and angles of triangles

• Calculus

• Algebra

• Geometry

• Trigonometry

Trigonometry comes from the two Greek words "trigonon" and "metron". What is the meaning of the word trigonon?

• Triple

• Triangle

• Trapezoid

• Trinomial

Find the measure of the unknown interior angle.

•  $26\degree$  

•  $21\degree$  

•  $27\degree$  

•  $30\degree$  

 $\cos\angle ABC=?$  

• 12/13

• 12/5

• 5/13

• 5/12

Which of the following formulas shows the Law of Cosines?

• c² = a² + b² - 4ac + cosA
• c² = a² - b² - 2abcosC
• c² = a² + b² - 2abcosC
• (cos A)/a = (cos B)/b