Soh Cah Toa Flashcard #1

Front

What is the definition of the hypotenuse in a right triangle?

Back

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

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 sin(θ) = opposite/hypotenuse, what is the formula to find the opposite side?

Back

opposite = hypotenuse * sin(θ)

Front

If cos(θ) = adjacent/hypotenuse, what is the formula to find the adjacent side?

Back

adjacent = hypotenuse * cos(θ)

Front

If tan(θ) = opposite/adjacent, what is the formula to find the opposite side?

Back

opposite = adjacent * tan(θ)

Front

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

Back

In a right triangle, a² + b² = c², where c is the hypotenuse and a and b are the other two sides.

Front

What is the value of sin(90°)?

Back

sin(90°) = 1.

Front

What is the value of cos(0°)?

Back

cos(0°) = 1.