Finding Missing Sides and Angles Right Triangle Trig Review

Front

What is the primary function of trigonometry in right triangles?

Back

To relate the angles and sides of right triangles using ratios.

Front

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

Back

Cosine (cos) = Adjacent side / Hypotenuse (cos = A/H).

Front

How do you determine the measure of an angle in a right triangle using a calculator?

Back

Use the inverse trigonometric functions (e.g., cos⁻¹, sin⁻¹, tan⁻¹) and ensure the calculator is set to degree mode.

Front

What is the ratio for sine in a right triangle?

Back

Sine (sin) = Opposite side / Hypotenuse (sin = O/H).

Front

What is the ratio for tangent in a right triangle?

Back

Tangent (tan) = Opposite side / Adjacent side (tan = O/A).

Front

What is the significance of rounding angles in trigonometry problems?

Back

Rounding provides a more manageable number for practical applications and ensures consistency in answers.

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 can you find a missing side in a right triangle if you know one angle and one side?

Back

Use trigonometric ratios (sin, cos, tan) to set up equations and solve for the missing side.

Front

What is the importance of labeling triangles correctly in trigonometry?

Back

Correct labeling helps in identifying which sides correspond to which angles, ensuring accurate calculations.

Front

What is the purpose of using Desmos or a scientific calculator in trigonometry?

Back

To perform calculations involving trigonometric functions and to visualize functions and angles.