Circles Vocab Quiz

What is the definition of the radius of a circle

• The set of points equidistant from a given point

• A segment with endpoints on the circle

• A segment with endpoints at the center and on the circle

• A chord that passes through the center of the circle

What is shown in the picture?

• diameter

• chord

• tangent line

• secant line

A chord that passes through the center of a circle is defined as?

• Radius

• Diameter

• Tangent Line

• Secant line

What is the definition of a secant line?

• A line that intersects the circle in two points

• A line that intersects the circle at one point

• A line that intersects the circle

• A line that intersects the circle at 3 points

What is shown in the diagram?

• Secant Line

• Area

• Tangent Line

• Perimeter

The central angle is an angle with the vertex at the _______, and two sides that are radii.

Angle ACB is an _______ angle

• inscribed angle

• Arc Angle

• Central Angle

• Semicircle

A portion of the edge of the circle defined by two endpoints is called...?

• Minor Arc

• Major Arc

• Arc

• Semicircle

What is the formula for area of a circle?

• A = 2πr
• A = πd
• A = r²/2
• A = πr²

What is the formula for the circumference of a circle?

• C = πd
• C = 2r
• C = 4πr
• C = 2πr