Home
Grade 1Grade 2Grade 3Grade 4Grade 5Grade 6Grade 7Grade 8Grade 9Grade 10Math Themes
Explorers (Grades 1-3)Explorers Elite (1-3)Navigators (Grades 4-6)Navigators Elite (4-6)Challengers (Grades 7-9)Challengers Elite (7-9)Schedule an Evaluation
Mobius MethodFlexible ClassesCompanySupport
Pricing
Ctrl+k
Sign InJoin

Trigonometry Fundamentals - Advanced

21 Topics, 2 Skills

Fact Family - Sin/Cos/Tan - Fact to Triangle

Topic 1

Fact Family - Sin/Cos/Tan - Triangle to Fact

Topic 2

Calculating Angles from Ratios (Words)

Topic 3

Approximating Ratios in Decimal from Diagrams

Topic 4

Calculating Angles from Ratio Fractions and Trig Identities

Topic 5

Side Length Ratios in Decimal from Diagrams

Topic 6

Solve Side Lengths from Values

Topic 7

Calculating Angles from Ratios

Topic 8

Calculating Angles from Ratio Decimals and Trig Identities

Topic 9

Solve Angles from Diagrams

Topic 10

Calculating Ratios from Angles (Words)

Topic 11

Calculating Angles from Ratios (-1 Notation)

Topic 12

Approximating Identities in Decimal from Diagrams

Topic 13

Identity Ratios from Diagrams

Topic 14

Solve Trig Ratio from Values

Topic 15

Solve Side Lengths from Diagrams

Topic 16

Calculating Ratios from Angles

Topic 17

Calculating Angles from Ratios (Arc Notation)

Topic 18

Side Length Ratios from Diagrams

Topic 19

Identities in Decimal from Diagrams

Topic 20

Solve Angles from Values

Topic 21

Trigonometry - Calculating Angles from Ratios (-1 Notation) (Level 1)

Topic 12

The topics in this unit focus on knowing how to solve triangles with trigonometry. Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

View Unit

Calculating Angles from Ratios (-1 Notation)

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

Calculate the angle in degrees, given the trigonometric ratio

cos−1(0.914)=α\text{cos}^{-1}(0.914) = \alpha