Radius, Diameter & Circumference SC

Front

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

Back

Radius

Front

What is the distance across a circle through its center?

Back

Diameter

Front

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

Back

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

Front

If the radius of a circle is 10 ft, what is the diameter?

Back

20 ft

Front

If the diameter of a circle is 30 ft, what is the radius?

Back

15 ft

Front

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

Back

31.42 ft (using π ≈ 3.14)

Front

What is the relationship between diameter and radius?

Back

Diameter = 2 × Radius

Front

What is the circumference of a circle with a diameter of 12 ft?

Back

37.68 ft (using π ≈ 3.14)

Front

If a circle has a circumference of 62.8 ft, what is its diameter?

Back

20 ft (using π ≈ 3.14)

Front

What is the term for the distance around a circle?

Back

Circumference