Trigonometry (Ratios and Missing Sides)

Front

What does SOH-CAH-TOA stand for?

Back

SOH-CAH-TOA is a mnemonic for remembering the definitions of the sine, cosine, and tangent functions in a right triangle: - SOH: Sine = Opposite/Hypotenuse - CAH: Cosine = Adjacent/Hypotenuse - TOA: Tangent = Opposite/Adjacent.

Front

What type of triangles can SOH-CAH-TOA be used for?

Back

SOH-CAH-TOA can only be used for right triangles.

Front

What is the cosine ratio in a right triangle?

Back

The cosine ratio in a right triangle is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

If angle B is a right angle, how do you set up the equation to find side BC using cosine?

Back

Front

What is the sine ratio in a right triangle?

Back

The sine ratio in a right triangle is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

If angle B is a right angle, how do you set up the equation to find side AB using sine?

Back

Front

What is the tangent ratio in a right triangle?

Back

The tangent ratio in a right triangle is the ratio of the length of the opposite side to the length of the adjacent side.

Front

How do you find the length of side AB if angle B is a right angle and the opposite side is 10 m?

Back

Front

What is the relationship between the sides of a right triangle and the angles?

Back

In a right triangle, the lengths of the sides are proportional to the sine, cosine, and tangent of the angles.

Front

What is the formula for finding the length of the hypotenuse in a right triangle?

Back