Geometry Chapter 8 vocab

Question 1

___ of two positive numbers is the positive square root of their product.

Answer 1

Geometric Mean

Question 2

A ration of two sides of a right triangle.

Answer 2

Trigonometric Ratio

Question 3

Opposite/Hypotenuse

Answer 3

Sine

Question 4

Adjacent/Hypotenuse

Answer 4

Cosine

Question 5

Opposite/Adjacent

Answer 5

Tangent

Question 6

The angle formed by a horizontal line and a line of sight to a point above the line.

Answer 6

Angle of elevation

Question 7

The angle formed by a horizontal line and a line of sight to a point below the line.

Answer 7

Angle of depression

Question 8

A quantity that has both length and direction.

Answer 8

Vector

Question 9

___ of a vector lists the horizontal and vertical change from the initial point to the terminal point.

Answer 9

Component form

Question 10

___ of a vector is its length.

Answer 10

Magnitude

Question 11

____ of a vector is the angle that it makes with a horizontal line.

Answer 11

Direction

Question 12

Two vectors are ____ if they have the same magnitude and the same directions.

Answer 12

Equal vectos

Question 13

Two vectors are ____ if they have the same direction or if they have opposite directions.

Answer 13

Parallel vectors

Question 14

The vector that represents the sum of two given vectors.

Answer 14

Resultant vector