FAC Geometry Definitions Unit 6-9 Quarter Test Final

Front

What is a chord in a circle?

Back

The line segment joining any two points on the circumference of the circle.

Front

What is the definition of Similar Volumes?

Back

The volumes of two similar figures that are related by the cube of the ratio of their corresponding side lengths.

Front

What is a central angle?

Back

An angle formed by two arms and having the vertex at the center of a circle.

Front

What is the definition of Hemisphere?

Back

Half of a Sphere.

Front

Which of the following describes a diameter?

Back

Any straight line segment that passes through the center of the circle and whose endpoints lie on the circumference of the circle.

Front

What is the definition of a tangent line?

Back

A line that touches a curve at exactly one point.

Front

What is the relationship between the radius and diameter of a circle?

Back

The diameter is twice the length of the radius.

Front

What is the formula for the area of a circle?

Back

A = πr², where r is the radius.

Front

What is the definition of a sector in a circle?

Back

A region bounded by two radii and the arc between them.

Front

What is the definition of a polygon?

Back

A closed figure formed by a finite number of line segments.