7th Grade Intro Circles

Front

What is the radius of a circle?

Back

The measurement from the center of a circle to an edge of the circle.

Front

How do you convert diameter to radius?

Back

Divide the diameter by 2.

Tags

CCSS.7.G.B.4

Front

What is the value of pi (π)?

Back

3.14

Tags

CCSS.HSG.GMD.A.1

Front

What does 'circumference' mean?

Back

Distance around a circle.

Front

What is the diameter of a circle?

Back

The distance from an edge of a circle to another edge through the center.

Front

What is the formula for the circumference of a circle?

Back

Circumference = 2 × π × radius.

Tags

CCSS.7.G.B.4

Front

What is the formula for the area of a circle?

Back

Area = π × radius².

Tags

CCSS.7.G.B.4

Front

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

Back

10 cm (Diameter = 2 × radius).

Tags

CCSS.7.G.B.4

Front

If the circumference of a circle is 31.4 cm, what is the radius?

Back

5 cm (Circumference = 2 × π × radius).

Tags

CCSS.7.G.B.4

Front

What is the relationship between diameter and radius?

Back

The diameter is twice the radius.

Tags

CCSS.7.G.B.4