Trigonometry Basics Quiz

What is the primary focus of trigonometry?

• Measurement of circles

• Measurement of triangles

• Measurement of squares

• Measurement of polygons

What does the acronym SOHCAHTOA help you remember?

• The types of triangles

• The trigonometric ratios

• The properties of angles

• The order of operations

In a right triangle, what is the sine of an angle defined as?

• Adjacent side over hypotenuse

• Opposite side over adjacent side

• Opposite side over hypotenuse

• Hypotenuse over opposite side

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

• Hypotenuse over adjacent side

• Adjacent side over hypotenuse

• Opposite side over hypotenuse

• Opposite side over adjacent side

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

• Opposite side over adjacent side

• Opposite side over hypotenuse

• Hypotenuse over opposite side

• Adjacent side over hypotenuse

If you are given a 23-degree angle and need to find the hypotenuse, which trigonometric function would you use?

• Cotangent

• Tangent

• Cosine

• Sine

How do you solve for an angle when you know the side lengths in a right triangle?

• Use the Pythagorean theorem

• Use inverse trigonometric functions

• Use the law of sines

• Use the law of cosines

What is the angle of elevation?

• The angle below the horizontal

• The angle above the horizontal

• The angle at the top of a triangle

• The angle at the base of a triangle

Which trigonometric function would you use to find the height of a tree if you know the distance from the tree and the angle of elevation?

• Sine

• Cosine

• Secant

• Tangent

What is the purpose of using inverse trigonometric functions?

• To find the perimeter of a triangle

• To find missing sides

• To find missing angles

• To find the area of a triangle