IM3 Trigonometry Review

Front

What does SOH CAH TOA stand for?

Back

SOH: Sine = Opposite/Hypotenuse, CAH: Cosine = Adjacent/Hypotenuse, TOA: Tangent = Opposite/Adjacent.

Front

What is the sine of an angle in a right triangle?

Back

The sine of an angle is the ratio of the length of the side opposite the angle to the length of the hypotenuse.

Front

What is the cosine of an angle in a right triangle?

Back

The cosine of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the tangent of an angle in a right triangle?

Back

The tangent of an angle is the ratio of the length of the side opposite the angle to the length of the adjacent side.

Front

If the opposite side is 6 and the adjacent side is 8, what is the tangent of the angle?

Back

Tangent = Opposite/Adjacent = 6/8 = 0.75.

Front

How do you find the missing angle in a right triangle?

Back

Use the sine, cosine, or tangent ratios based on the known sides.

Front

What is the hypotenuse in a right triangle?

Back

The hypotenuse is the longest side of a right triangle, opposite the right angle.

Front

In triangle ABC, if angle A is 30 degrees, what is the sine of angle A?

Back

Sine(30°) = 1/2.

Front

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

Back

The sum of the angles in a right triangle is always 180 degrees, with one angle being 90 degrees.

Front

If the hypotenuse is 10 and the opposite side is 6, what is the sine of the angle?

Back

Sine = Opposite/Hypotenuse = 6/10 = 0.6.