Right Triangle Trigonometry: Finding Missing Angles

What does the 'O' in SOHCAHTOA stand for?

• Original

• Obtuse

• Orbit

• Opposite

What trigonometric function is represented by 'CAH'?

• Sine

• Cosine

• Tangent

• Cosecant

What does 'TOA' in SOHCAHTOA stand for?

• Tangent equals Original over Angle

• Tangent equals Opposite over Adjacent

• Tangent equals Obtuse over Acute

• Tangent equals Orbit over Axis

What does the inverse trigonometric function do?

• It divides the trigonometric ratio by the angle.

• It finds the original angle from the trigonometric ratio.

• It squares the trigonometric ratio.

• It multiplies the trigonometric ratio by two.

How is the inverse sine function written?

• sin^(2)

• sin^(-1)

• sin(x)

• 1/sin

What is the result of the inverse sine of 40/55?

• 40 degrees

• 55 degrees

• 30 degrees

• 46.7 degrees

How do you calculate the angle when you know the opposite and hypotenuse sides?

• Use secant

• Use sine

• Use tangent

• Use cosine

What is the angle if the opposite side is 15 and the hypotenuse is 38?

• 45 degrees

• 15 degrees

• 38 degrees

• 23.8 degrees

Which function would you use to solve for an angle when you know the opposite and adjacent sides?

• Secant

• Tangent

• Cosine

• Sine

If the adjacent side is 27 and the hypotenuse is 32, what is the angle?

• 45 degrees

• 60 degrees

• 27 degrees

• 32.5 degrees