Unit Circle Vocabulary Quiz

What is the term for the distance around a circle?

• Radius

• Circumference

• Diameter

• Quadrant

Fill in the blank: The ______ is the line segment from the center of the circle to any point on its circumference.

• Diameter

• Radius

• Tangent

• Sine

Which term describes the longest distance across a circle?

• Radius

• Circumference

• Diameter

• Radians

Fill in the blank: ______ is the branch of mathematics dealing with the relationships between the angles and sides of triangles.

• Trigonometry

• Algebra

• Geometry

• Calculus

What unit is used to measure angles in a circle?

• Degrees

• Radians

• Sine

• Cosine

Fill in the blank: The ______ function is used to find the ratio of the opposite side to the hypotenuse in a right triangle.

• Cosine

• Sine

• Tangent

• Quadrant

Which trigonometric function is used to find the ratio of the adjacent side to the hypotenuse?

• Sine

• Cosine

• Tangent

• Radians

Fill in the blank: The ______ function is used to find the ratio of the opposite side to the adjacent side in a right triangle.

• Sine

• Cosine

• Tangent

• Diameter

What term is used to describe a set of numbers that determine the position of a point in a plane?

• Coordinates

• Quadrants

• Radians

• Circumference

Fill in the blank: The coordinate plane is divided into four sections called ______.

• Radians

• Quadrants

• Coordinates

• Sine