Circumference and Area Diameter and Radius

If the radius of a circle is 4 inches, what is the diameter?

• 2 inches

• 2 feet

• 4 inches

• 8 inches

Tags

CCSS.7.G.B.4

How do you find the area of a circle?

Tags

CCSS.7.G.B.4

What is the diameter of this circle?

• 6 m

• 6 cm

• 24 cm

• 24 m

Tags

CCSS.7.G.B.4

The homeowners association wants to enclose the playground in a fence. So they need to figure out how much fencing will they need to purchase. Is this question finding the area or the circumference of a circle?

• area

• circumference

• neither

Tags

CCSS.7.G.B.4

What number is pi?

• 41

• 00

• 3.14

• 5.14

Tags

CCSS.HSG.GMD.A.1

What two formulas can you use to find the circumference?

• C = π·d

• C = π·r²

• C = 2·π·r

• C = d²

Tags

CCSS.7.G.B.4

To go from radius to diameter I need to do what?

• divide by 2

• multiply by 2

• multiply by 3.14

• divide by 3.14

Tags

CCSS.7.G.B.4

• center
• diameter
• radius

Tags

CCSS.HSG.C.A.2

A straight line segment that passes through the center of a circle and whose endpoints lie on the circumference of the circle is called the ____.

• Diameter

• Radius

• Circumference

• Area

Tags

CCSS.HSG.C.A.2

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

• 12 m

• 32 m

• 25 m

• 48 m

Tags

CCSS.7.G.B.4