SohCahToa (1)

Front

What type of triangles do you use the trig ratios with?

Back

Right triangles.

Front

What is the sine ratio in a right triangle?

Back

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

Front

What is the cosine ratio 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 ratio in a right triangle?

Back

The tangent of an angle 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 a side in a right triangle using sine?

Back

Use the formula: sin(angle) = opposite/hypotenuse.

Front

How do you find the length of a side in a right triangle using cosine?

Back

Use the formula: cos(angle) = adjacent/hypotenuse.

Front

How do you find the length of a side in a right triangle using tangent?

Back

Use the formula: tan(angle) = opposite/adjacent.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

If sin C = 28/35, what is the value of angle C?

Back

C can be found using the inverse sine function: C = sin⁻¹(28/35).

Front

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

Back

The ratios of the lengths of the sides are constant for given angles.