Vocabulary: Part 1
Vocabulary: Part 2
Finding Sines, Cosines, & Tangents
Solving Right Triangles
Vectors
100
Involving two positive numbers, it's the square root of their product.
What is geometric mean.
100
The angle formed by a horizontal line and a line of sight to a point below the line.
What is the angle of depression.
100
Find sin30.
What is 0.5
100
tan70=y/67.
What is y=184.
100
Find the magnitude of {4,-2}.
What is 4.5
200
A ratio of two sides of a right triangle.
What is trigonometric ratio.
200
The length of a vector.
What is magnitude.
200
Find cos90.
What is 0
200
tan48=69/y.
What is y=62.1
200
Find the direction of {2,5}
What is 68 degrees.
300
The angle formed by a horizontal line and the line of sight to a point above the line.
What is an angle of elevation.
300
The ratio of the length of the leg adjacent to the angle to the length of the hypotenuse.
What is cosine.
300
Find sin59 to the nearest hundredth.
What is .86
300
True or false: You should always round answers before the final step of your problem.
False
300
Find the component form of vector PQ with P(7,-5) and Q(4,3).
What is {3,8}.
400
A quantity that has both length and direction.
What is a vector.
400
The angle that a vector makes with a horizontal line.
What is direction.
400
Find tan45.
What is 1
400
In order to use the law of sines, you'd need to have these one of these three theorems apply to the triangle.
What is Angle-Angle-Side, Angle-Side-Angle, and Side-Side-Angle.
400
Find the direction of {4,6} to the nearest degree.
What is 56 degrees.
500
The ratio of the length of the leg opposite the angle to the length of the hypotenuse.
What is sine.
500
the ratio of the length of the leg opposite the angle to the lenght of the leg adjacent to the hypotenuse.
What is tangent.
500
Find tan34 to the nearest hundredth.
What is .67
500
In order to use the law of cosines, you'd need to have one of these two theorems apply to the triangle.
What is Side-Side-Side and Side-Angle-Side.
500
Find the direction of {7,2} to the nearest degree.
What is 16 degrees.
M
e
n
u