Trig Ratios & Finding Side Lengths

Front

What is the ratio for SIN X?

Back

Opp / Hyp

Front

What is the ratio for TAN X?

Back

Opp / Adj

Front

What is the ratio for COS X?

Back

Adj / Hyp

Front

If SIN 65 = X / 12, what is X?

Back

X ≈ 10.9

Front

What is the definition of a Trigonometric Ratio?

Back

A ratio of the lengths of two sides of a right triangle.

Front

What is the relationship between the sides in a right triangle?

Back

The sum of the squares of the two shorter sides equals the square of the longest side (Pythagorean theorem).

Front

How do you find the length of a side using SIN?

Back

Use the formula: Opp = Hyp * SIN(X).

Front

How do you find the length of a side using COS?

Back

Use the formula: Adj = Hyp * COS(X).

Front

How do you find the length of a side using TAN?

Back

Use the formula: Opp = Adj * TAN(X).

Front

What is the value of SIN 30 degrees?

Back

0.5