Trigonometry Pre Test - Worcester Polytechnic Institute
Trigonometry Pre Test
1. A right triangle has legs of 16 and 30 feet. How long is its hypotenuse?
a) 46 feet b) 34 feet c) [pic] feet d)17 feet
2. One leg of a triangle is 12 inches while the hypotenuse is 13 inches. How long is the other leg?
a) 5 inches b) 1 inch c) 25 inches d) 12 inches
3. A right triangle is shown below. What is cos(A)?
[pic]
a) 21 b) 20 c) 21/29 d) 20/29
4. A triangle has sides of lengths 6,8 and 9 units. Is it a right triangle?
a) yes b) no
5. A right triangle is shown. What is the value of A?
[pic]
a) 30 b) 20 c) 10 d) [pic]
6. A right triangle is shown. What is the value of A?
[pic]
a) 2 b) ½ c) 3 d) 4
7. If cos(α) = 2/3 what is the value of sin(α) ?
a) [pic] b) 1/3 c) 5 d) 2/3
8. If cos(α) = 2/3 what is the value of tan(α) ?
a) [pic] b) [pic] c) 5 d) 1/3
9. What is 30 degrees converted to radians?
a) 3 radians b) π radians c) π/9 radians d) π/12 radians
10. for x between 0 and 24 π radians , how many complete oscillations does the function sin(x) make?
a) 1 b) 24 c) 12 d) 2 π
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