Radius and Diameter

Front

What is the radius of a circle?

Back

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

Front

What is the diameter of a circle?

Back

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

Tags

CCSS.HSG.C.A.2

Front

If the radius of a circle is 6 m, what is the diameter?

Back

The diameter is 12 m (Diameter = 2 x Radius).

Tags

CCSS.7.G.B.4

Front

If the diameter of a circle is 80 ft, what is the radius?

Back

The radius is 40 ft (Radius = Diameter / 2).

Tags

CCSS.7.G.B.4

Front

What is the relationship between radius and diameter?

Back

The diameter is always twice the length of the radius.

Tags

CCSS.7.G.B.4

Front

If a circle has a radius of 24 m, what is the diameter?

Back

The diameter is 48 m.

Tags

CCSS.7.G.B.4

Front

What is the formula to find the diameter if the radius is known?

Back

Diameter = 2 x Radius.

Tags

CCSS.7.G.B.4

Front

What is the formula to find the radius if the diameter is known?

Back

Radius = Diameter / 2.

Tags

CCSS.7.G.B.4

Front

Is the following statement true or false? 'The radius is longer than the diameter.'

Back

False. The diameter is always longer than the radius.

Tags

CCSS.HSG.C.A.2

Front

If a circle has a diameter of 70 m, what is the radius?

Back

The radius is 35 m.

Tags

CCSS.7.G.B.4