Geometry - 8.4 - Trigonometry

Front

What is the definition of a right triangle?

Back

A right triangle is a triangle that has one angle measuring 90 degrees.

Front

What is the Pythagorean theorem?

Back

Front

What are the primary trigonometric ratios?

Back

The primary trigonometric ratios are sine (sin), cosine (cos), and tangent (tan). They are defined as follows: - sin(θ) = opposite/hypotenuse - cos(θ) = adjacent/hypotenuse - tan(θ) = opposite/adjacent.

Front

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

Back

Front

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

Back

Front

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

Back

Front

What is the relationship between the angles in a triangle?

Back

The sum of the angles in any triangle is always 180 degrees.

Front

If angle A is 36.9°, what is the measure of angle B if angle C is 90°?

Back

Angle B can be found using the triangle angle sum property: angle B = 180° - angle A - angle C = 180° - 36.9° - 90° = 53.1°.

Front

What is the formula to find the length of a side in a right triangle using trigonometric ratios?

Back

Front

How do you solve for an angle using the inverse trigonometric functions?

Back