Using Trig ratios to solve rt. triangles

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 ratios in a right triangle: Sine = Opposite/Hypotenuse, Cosine = Adjacent/Hypotenuse, Tangent = Opposite/Adjacent.

Front

What type of triangles can we use SOH-CAH-TOA for?

Back

Right Triangles only.

Front

What is the sine ratio for an angle in a right triangle?

Back

Sine of an angle = Opposite side / Hypotenuse.

Front

What is the cosine ratio for an angle in a right triangle?

Back

Cosine of an angle = Adjacent side / Hypotenuse.

Front

What is the tangent ratio for an angle in a right triangle?

Back

Tangent of an angle = Opposite side / Adjacent side.

Front

If sin(37) = x/14, what is the correct ratio?

Back

cos(37) = x/14.

Front

If sin(33) = x/14, what is the correct ratio?

Back

sin(33) = x/14.

Front

What is the sum of the angles in any triangle?

Back

180 Degrees.

Front

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

Back

Use the sine, cosine, or tangent ratios to set up an equation and solve for the angle.

Front

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

Back

The lengths of the sides are proportional to the sine, cosine, and tangent of the angles.