7th Grade Milestone Review - Circumference and Area of Circles

Front

What is the circumference of a circle?

Back

The distance around the circle.

Tags

CCSS.7.G.B.4

Front

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

Back

C = πd or C = 2πr.

Tags

CCSS.7.G.B.4

Front

What does the 'd' represent in the formula C = πd?

Back

The diameter of the circle.

Tags

CCSS.7.G.B.4

Front

What does the 'r' represent in the formula C = 2πr?

Back

The radius of the circle.

Tags

CCSS.7.G.B.4

Front

If the diameter of a circle is 16, what is the circumference?

Back

C = πd = π × 16.

Tags

CCSS.7.G.B.4

Front

What is the area of a circle?

Back

The space contained within the circle.

Front

What formula is used to calculate the area of a circle?

Back

A = πr².

Tags

CCSS.7.G.B.4

Front

If the radius of a circle is 4, what is the area?

Back

A = π(4)² = 16π.

Tags

CCSS.7.G.B.4

Front

What is the relationship between diameter and radius?

Back

Diameter is twice the radius (d = 2r).

Tags

CCSS.7.G.B.4

Front

What is the value of π (pi) approximately?

Back

Approximately 3.14.

Tags

CCSS.HSG.GMD.A.1