Right Triangle Trig

Front

What is the Pythagorean Theorem?

Back

Front

What is the formula to find the hypotenuse of a right triangle when the legs are known?

Back

Front

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

Back

Front

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

Back

Front

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

Back

Front

If one leg of a right triangle is missing, which formula can be used?

Back

Front

What is the relationship between the sides of a 30-60-90 triangle?

Back

In a 30-60-90 triangle, the lengths of the sides are in the ratio 1:√3:2. The side opposite the 30° angle is the shortest, the side opposite the 60° angle is √3 times the shortest side, and the hypotenuse is twice the shortest side.

Front

What is the relationship between the sides of a 45-45-90 triangle?

Back

In a 45-45-90 triangle, the lengths of the legs are equal, and the hypotenuse is √2 times the length of each leg.

Front

What is the purpose of the trigonometric ratios?

Back

Trigonometric ratios (sine, cosine, tangent) are used to relate the angles and sides of right triangles, allowing for the calculation of unknown lengths or angles.

Front

How do you find the angle using the sine function?

Back