SOHCAHTOA REVIEW

Front

What does SOHCAHTOA stand for?

Back

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

Front

What is the sine function?

Back

The sine function (sin) is defined as the ratio of the length of the opposite side to the length of the hypotenuse in a right triangle.

Front

What is the cosine function?

Back

The cosine function (cos) is defined as the ratio of the length of the adjacent side to the length of the hypotenuse in a right triangle.

Front

What is the tangent function?

Back

The tangent function (tan) is defined as the ratio of the length of the opposite side to the length of the adjacent side in a right triangle.

Front

If the angle is A, what is the formula for sine?

Back

sin(A) = Opposite/Hypotenuse.

Front

If the angle is A, what is the formula for cosine?

Back

cos(A) = Adjacent/Hypotenuse.

Front

If the angle is A, what is the formula for tangent?

Back

tan(A) = Opposite/Adjacent.

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

How do you find the hypotenuse using cosine?

Back

To find the hypotenuse using cosine, use the formula: Hypotenuse = Adjacent / cos(angle).

Front

What is the relationship between sine and cosine?

Back

Sine and cosine are related through the Pythagorean identity: sin²(A) + cos²(A) = 1.