Circle Terminology

Front

What is the term for the longest arc connecting two points on a circle?

Back

Major Arc

Tags

CCSS.HSG.C.B.5

Front

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

Back

The diameter is twice the length of the radius.

Tags

CCSS.7.G.B.4

Front

What is the term for a line that intersects a circle at two points?

Back

Secant

Front

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

Back

Central Angle

Front

What is the term for a line segment from the center of a circle to any point on the circle?

Back

Radius

Front

What is the term for the shortest arc connecting two points on a circle?

Back

Minor Arc

Tags

CCSS.HSG.C.B.5

Front

What do you call a line that touches a circle at exactly one point?

Back

Tangent

Front

What is the term for the distance across a circle through its center?

Back

Diameter

Front

What is the term for the area enclosed by a circle?

Back

Circle Area

Front

What is the formula for the circumference of a circle?

Back

Circumference = π × Diameter or Circumference = 2π × Radius

Tags

CCSS.7.G.B.4