Trigonometry Foundations

38 Topics, 3 Skills

Both Lengths to Ratio, Whole Numbers - Right Angle Line Display

Topic 1

Length and Ratio to Top Length, Whole Numbers - Angle Line Display

Topic 2

Length and Ratio to Top Length, Whole Numbers - Right Angle Line Display

Topic 3

Length and Ratio to Bottom Length, Whole Numbers - Right Angle Line Display

Topic 4

Both Lengths to Ratio, Whole Numbers - Angle Line Display

Topic 5

Length and Ratio to Bottom Length, Whole Numbers - Angle Line Display

Topic 6

Length and Ratio to Top Length, Whole Numbers - Number Only Display

Topic 7

Length and Ratio to Top Length, Whole Numbers - Number Only Display

Topic 8

Length and Ratio to Bottom Length, Whole Numbers - Number Only Display

Topic 9

Length and Ratio to Bottom Length, Whole Numbers - Number Only Display

Topic 10

Length and Ratio to Bottom Length, Whole Numbers - Angle Line Display

Topic 11

Labeling of Sides - First Time

Topic 12

Labeling of Side Ratios - First Time

Topic 13

SOHCAHTOA Acronym - First Time

Topic 14

Trig Identities with SOHCAHTOA, Reversed

Topic 15

Ratio Manipulation

Topic 16

Side Lengths from Variables

Topic 17

Length and Ratio to Top Length, Whole Numbers - Parallel Line Display

Topic 18

Length and Ratio to Top Length, Whole Numbers - Angle Line Display

Topic 19

Labeling of Sides

Topic 20

Labeling of Side Ratios

Topic 21

SOHCAHTOA Acronym - Details

Topic 22

Trig Identities in Variable Ratios

Topic 23

Ratio Manipulation

Topic 24

Both Lengths to Ratio, Whole Numbers - Parallel Line Display

Topic 25

Both Lengths to Ratio, Whole Numbers - Angle Line Display

Topic 26

Labeling of Sides, Reversed

Topic 27

Labeling of Side Ratios, Reversed

Topic 28

Trig Identities with SOHCAHTOA

Topic 29

Select Trig Identity from Variable Ratios

Topic 30

Side Lengths from Variables and Identity

Topic 31

Both Lengths to Ratio, Whole Numbers - Parallel Line Display

Topic 32

Length and Ratio to Top Length, Whole Numbers - Parallel Line Display

Topic 33

Length and Ratio to Bottom Length, Whole Numbers - Parallel Line Display

Topic 34

Both Lengths to Ratio, Whole Numbers - Right Angle Line Display

Topic 35

Length and Ratio to Top Length, Whole Numbers - Right Angle Line Display

Topic 36

Length and Ratio to Bottom Length, Whole Numbers - Right Angle Line Display

Topic 37

Length and Ratio to Bottom Length, Whole Numbers - Parallel Line Display

Topic 38

Trigonometry - Select Trig Identity from Variable Ratios (Level 1)

Topic 30

This math topic focuses on basic trigonometric identities and their relationships, specifically sine, cosine, and tangent. It involves selecting the correct trigonometric ratio based on variable ratios given, such as the side opposite to the angle over the side adjacent to the angle (opp/adj), adjacent over hypotenuse (adj/hyp), and opposite over hypotenuse (opp/hyp). The problems require understanding and application of trigonometry foundations to identify these ratios correctly.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Select Trig Identity from Variable Ratios

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


Select the trigonometry ratio that this is the definition of

oppadj\frac{opp}{adj}