Circumference and Pi

Front

To go from diameter to radius, what do I need to do?

Back

Divide by 2.

Tags

CCSS.7.G.B.4

Front

What number represents π?

Back

3.14.

Tags

CCSS.HSG.GMD.A.1

Front

______________ is twice the radius.

Back

Diameter.

Tags

CCSS.HSG.C.A.2

Front

If you divide the circumference of a circle by its diameter, what answer will you always get?

Back

Pi.

Tags

CCSS.7.G.B.4

Front

To go from radius to diameter I need to do what?

Back

Multiply by 2.

Tags

CCSS.7.G.B.4

Front

What is the formula for the circumference of a circle?

Back

C = π × d or C = 2 × π × r.

Tags

CCSS.7.G.B.4

Front

What is the value of π (Pi) approximately?

Back

3.14.

Tags

CCSS.HSG.GMD.A.1

Front

What is the relationship between diameter and radius?

Back

Diameter is twice the radius.

Tags

CCSS.7.G.B.4

Front

How do you calculate the radius from the circumference?

Back

Radius = Circumference / (2 × π).

Tags

CCSS.7.G.B.4

Front

What is the diameter of a circle with a radius of 5 cm?

Back

10 cm.

Tags

CCSS.7.G.B.4