What are the trigonometric definitions of a right triangle

The video tutorial introduces right triangles and the Pythagorean theorem, emphasizing the importance of the hypotenuse. It explains how to differentiate between the adjacent and opposite sides of a triangle when given an angle theta. The tutorial then covers the six trigonometric functions: sine, cosine, tangent, and their reciprocals, cosecant, secant, and cotangent, providing a foundational understanding of trigonometric ratios in right triangles.

In a right triangle, which side is always opposite the 90-degree angle?

• Adjacent side

• Opposite side

• Base

• Hypotenuse

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

• Hypotenuse over opposite side

• Adjacent side over hypotenuse

• Adjacent side over opposite side

• Opposite side over hypotenuse

Which trigonometric function is the ratio of the opposite side to the adjacent side?

• Secant

• Tangent

• Cosine

• Sine

What is the reciprocal of the sine function called?

• Secant

• Cosecant

• Cotangent

• Tangent

If the cosine of an angle is adjacent over hypotenuse, what is the secant of the angle?

• Opposite over hypotenuse

• Hypotenuse over opposite

• Adjacent over opposite

• Hypotenuse over adjacent