Midterm Review ­ trigonometry.notebook
Use a calculator to evaluate the given trigonometric function to the nearest four decimal places.
1) sin 10
January 11, 2013
3)What is the measure of an angle (to the nearest degree) whose sine is 0.6633?
a) 43 b) 42 c) 41 d) 38 2) cos 77
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7)
5)
a) 137.6 b) 162.2 c) 45.6 d) 72.9
a) 40.6 b) 37.2 c) 40.5 d) 49.5
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Midterm Review ­ trigonometry.notebook
9) In a right triangle ABC, the hypotenuse AB is 11 and leg BC is 4. Find the measure of angle A to the nearest degree.
January 11, 2013
11)
a) a = tan 27 c) a = 10 cos 63
b) tan 63 = a d) sin 63 = a
10 10
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13) A wooden beam 24 feet long leans against a wall and makes an angle of 71 degrees with the ground. How high up the wall does the beam reach to the nearest foot?
Nov 19­12:13 PM
15) A 35 ­ foot ladder leaning against a building and makes an angle of 68 degrees with the ground. What is the distance between the foot of the ladder and the building to the nearest foot?
a) 32 feet b) 87 feet c) 13 feet d) 35 feet
a) 70 feet b) 23 feet c) 8 feet d) 25 feet
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Midterm Review ­ trigonometry.notebook
January 11, 2013
17) A 20 ­ foot pole casts a 20 ­ foot shadow in the sunlight. What is the angle of elevation of the sun?
21)
a) 60 b) 50 c) 45 d) 30
a) 3 b) 17 c) 15 d) 25
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