SOH-CAH-TOA

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 is the sine ratio?

Back

The sine ratio (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 ratio?

Back

The cosine ratio (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 ratio?

Back

The tangent ratio (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 sin C = 0.5, what is the angle C?

Back

Angle C is 30 degrees.

Front

If cos C = 0.6, what is the angle C?

Back

Angle C is approximately 53.13 degrees.

Front

If tan C = 1, what is the angle C?

Back

Angle C is 45 degrees.

Front

In a right triangle, if the opposite side is 3 and the hypotenuse is 5, what is sin A?

Back

sin A = 3/5.

Front

In a right triangle, if the adjacent side is 4 and the hypotenuse is 5, what is cos B?

Back

cos B = 4/5.

Front

In a right triangle, if the opposite side is 3 and the adjacent side is 4, what is tan A?

Back

tan A = 3/4.