G9- GEOMETRY - TRIG. RATIOS _ SOHCAHTOA REVIEW FLASHCARD 2

Front

What does SOHCAHTOA stand for?

Back

SOHCAHTOA is a mnemonic for remembering the definitions of the sine, cosine, and tangent functions: Sine = Opposite/Hypotenuse, Cosine = Adjacent/Hypotenuse, Tangent = Opposite/Adjacent.

Front

How do you find the cosine of an angle in a right triangle?

Back

Cosine of an angle (A) is found by dividing the length of the adjacent side by the length of the hypotenuse: cos A = Adjacent/Hypotenuse.

Front

How do you find the sine of an angle in a right triangle?

Back

Sine of an angle (C) is found by dividing the length of the opposite side by the length of the hypotenuse: sin C = Opposite/Hypotenuse.

Front

What is the tangent of an angle in a right triangle?

Back

Tangent of an angle (A) is found by dividing the length of the opposite side by the length of the adjacent side: tan A = Opposite/Adjacent.

Front

If the opposite side is 30 and the hypotenuse is 34, what is sin A?

Back

sin A = Opposite/Hypotenuse = 30/34.

Front

If the adjacent side is 30 and the hypotenuse is 34, what is cos A?

Back

cos A = Adjacent/Hypotenuse = 30/34.

Front

What is the formula to find the angle of elevation?

Back

The angle of elevation can be found using the tangent function: tan(θ) = Opposite/Adjacent.

Front

Max is 6 feet tall and casts a shadow 15 feet long. How do you find the angle of elevation?

Back

Use the formula: tan(θ) = Opposite/Adjacent = 6/15. Then calculate θ using the arctan function.

Front

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

Back

The sum of the angles in a right triangle is always 180 degrees, with one angle being 90 degrees.

Front

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

Back

Subtract the sum of the known angles from 90 degrees to find the missing angle.