Area and Circumference

Front

What is the radius of a circle?

Back

A line from the center point to the edge of the circle.

Front

What is the diameter of a circle?

Back

A line that crosses through the center and touches each edge.

Front

How do you calculate the circumference of a circle?

Back

Circumference = π × diameter or Circumference = 2 × π × radius.

Tags

CCSS.7.G.B.4

Front

If the diameter of a circle is 14 cm, what is the radius?

Back

7 cm.

Tags

CCSS.7.G.B.4

Front

What is the formula for the area of a circle?

Back

Area = π × radius².

Tags

CCSS.7.G.B.4

Front

What is the circumference of a circle with a radius of 5 inches?

Back

31.4 inches.

Tags

CCSS.7.G.B.4

Front

What is the relationship between radius and diameter?

Back

Diameter = 2 × radius.

Tags

CCSS.7.G.B.4

Front

What does circumference represent in a real-world context?

Back

The distance around a circular object.

Front

If a playground needs to be fenced, what measurement is required?

Back

Circumference.

Front

Which segment is not a radius if CA, CB, CD, and LM are segments of a circle?

Back

LM.