Radius and Diameter

Front

What is the definition of a radius?

Back

The radius is the distance from the center of a circle to any point on its circumference.

Front

What is the definition of a diameter?

Back

The diameter is the distance across a circle through its center, equal to twice the radius.

Tags

CCSS.HSG.C.A.2

Front

What is the relationship between radius and diameter?

Back

Tags

CCSS.7.G.B.4

Front

What is the formula for the circumference of a circle using radius?

Back

Tags

CCSS.7.G.B.4

Front

What is the formula for the circumference of a circle using diameter?

Back

Tags

CCSS.7.G.B.4

Front

If the radius of a circle is 5 cm, what is the diameter?

Back

The diameter is 10 cm.

Tags

CCSS.7.G.B.4

Front

If the diameter of a circle is 20 cm, what is the radius?

Back

The radius is 10 cm.

Tags

CCSS.7.G.B.4

Front

What is the circumference of a circle with a radius of 7 cm?

Back

Tags

CCSS.7.G.B.4

Front

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

Back

Tags

CCSS.7.G.B.4

Front

Is the line segment connecting two points on the circle through the center a radius or diameter?

Back

It is a diameter.