The video tutorial explains the properties of triangles, focusing on right triangles and the role of angle Theta. It covers the identification of triangle sides: hypotenuse, adjacent, and opposite. The tutorial then demonstrates how to calculate trigonometric ratios such as sine, cosine, and tangent using these sides. It also discusses the reciprocal identities of these trigonometric functions, including cosecant, secant, and cotangent.

In a right triangle, which side is opposite the right angle?

• Hypotenuse

• Opposite

• Adjacent

• Theta

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

• Hypotenuse over Opposite

• Opposite over Hypotenuse

• Adjacent over Hypotenuse

• Opposite over Adjacent

Which theorem is used to find the hypotenuse in a right triangle?

• Pythagorean Theorem

• Sine Rule

• Cosine Rule

• Tangent Rule

What is the reciprocal of the sine function?

• Tangent

• Secant

• Cosecant

• Cotangent

If the cosine of an angle is 3/5, what is the secant?

• 4/5

• 5/3

• 3/5

• 5/4