8-2 Part 1: Writing Trig Ratios

Front

What is the definition of a trigonometric ratio?

Back

A trigonometric ratio is a ratio of the lengths of two sides of a right triangle. The three primary trigonometric ratios are sine, cosine, and tangent.

Front

What is the formula for Sine (Sin)?

Back

Front

What is the formula for Cosine (Cos)?

Back

Front

What is the formula for Tangent (Tan)?

Back

Front

If the opposite side is 9 and the hypotenuse is 40, what is SinA?

Back

Front

If the adjacent side is 40 and the hypotenuse is 41, what is CosA?

Back

Front

If the opposite side is 9 and the adjacent side is 40, what is TanA?

Back

Front

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

Back

In a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides (Pythagorean theorem).

Front

What is the value of SinA if the opposite side is 12 and the hypotenuse is 37?

Back

Front

What is the value of CosA if the adjacent side is 35 and the hypotenuse is 37?

Back