Finding Angles in Right-Angled Triangles

What is the longest side of a right triangle called?

• Adjacent

• Opposite

• Hypotenuse

• Equilateral

Which trigonometric ratio is used when you know the opposite and adjacent sides?

• Secant

• Sine

• Cosine

• Tangent

What is the result of the inverse tangent of 5/12?

• 45 degrees

• 22.6 degrees

• 30 degrees

• 60 degrees

What is the correct expression for tangent of an angle?

• Opposite over Hypotenuse

• Adjacent over Opposite

• Adjacent over Hypotenuse

• Opposite over Adjacent

Which sides are used in the cosine ratio?

• Adjacent and Hypotenuse

• Opposite and Hypotenuse

• Opposite and Adjacent

• All sides

What is the result of the inverse cosine of 4/13?

• 72.1 degrees

• 22.6 degrees

• 45 degrees

• 30 degrees

What is the correct expression for cosine of an angle?

• Opposite over Hypotenuse

• Opposite over Adjacent

• Adjacent over Hypotenuse

• Adjacent over Opposite

Which trigonometric ratio is used when you know the opposite and hypotenuse sides?

• Tangent

• Cosine

• Cotangent

• Sine

What is the result of the inverse sine of 5/10?

• 90 degrees

• 60 degrees

• 45 degrees

• 30 degrees

What is the correct expression for sine of an angle?

• Opposite over Hypotenuse

• Adjacent over Opposite

• Adjacent over Hypotenuse

• Opposite over Adjacent