Circles Vocabulary Review

What is the distance from the center of a circle to any point on the circle called?

• Diameter

• Chord

• Circumference

• Radius

What is the longest chord that passes through the center of a circle called?

• Tangent

• Radius

• Diameter

• Circumference

What is the formula to calculate the area of a circle?

• A = 2πr

• A = 0.5πr^2

• A = 3r^2

• A = πr^2

Tags

CCSS.7.G.B.4

What is the angle formed by two radii of a circle called?

• Perpendicular angle

• Central angle

• Diameter angle

• Outer angle

What is the length of a section of the circumference of a circle called?

• Loop length

• Segment length

• Arc length

• Curve length

What is a line that touches a circle at exactly one point called?

• Chord

• Secant

• Radius

• Tangent

What is a line that intersects a circle at two points called?

• Secant

• Chord

• Tangent

• Radius

What is the line segment that connects two points on a circle called?

• Diameter

• Radius

• Tangent

• Chord

What is the name of the line segment that starts at the center of a circle and ends at a point on the circle?

• Diameter

• Radius

• Chord

• Tangent

What is the formula to calculate the circumference of a circle?

• C = 2πr

• C = πr^2

• C = 3r^2

• C = 0.5πr^2

Tags

CCSS.7.G.B.4