Area and Circumference of a Circle

Front

What is the formula for the Circumference of a Circle?

Back

The formula for the Circumference (C) of a circle is C = 2 * π * r, where r is the radius.

Tags

CCSS.7.G.B.4

Front

What is the formula for the Area of a Circle?

Back

The formula for the Area (A) of a circle is A = π * r^2, where r is the radius.

Tags

CCSS.7.G.B.4

Front

What is the relationship between Diameter and Radius?

Back

The Diameter (d) of a circle is twice the Radius (r): d = 2 * r.

Tags

CCSS.7.G.B.4

Front

What is the Circumference of a circle with a Radius of 7 cm?

Back

The Circumference is 43.96 cm.

Tags

CCSS.7.G.B.4

Front

What is the Area of a circle with a Diameter of 12 cm?

Back

The Area is 113.04 cm².

Tags

CCSS.7.G.B.4

Front

What is the Diameter of a circle with a Radius of 5 cm?

Back

The Diameter is 10 cm.

Tags

CCSS.7.G.B.4

Front

What is the Circumference of a circle with a Diameter of 13 cm?

Back

The Circumference is 40.82 cm.

Tags

CCSS.7.G.B.4

Front

What is the value of π (Pi) approximately?

Back

π (Pi) is approximately 3.14.

Tags

CCSS.HSG.GMD.A.1

Front

What is the term for the distance around a circle?

Back

The distance around a circle is called the Circumference.

Front

What is the term for the longest distance across a circle?

Back

The longest distance across a circle is called the Diameter.