Area of Circle

Describe the formula for area of a circle

• Area is pi times the radius squared

• Area is base time height divided by two

• Area is radius times pi squared

• Area is two times pi times radius

Tags

CCSS.7.G.B.4

What is this symbol called?

• pi

• sigma

• radius

• omega

Tags

CCSS.HSG.GMD.A.1

Which of these is the formula for Area of a circle?

• 
• 
• 
• 

Tags

CCSS.7.G.B.4

What is the approximate numerical value of this sign?

• 3.11

• 3.14

• 4.13

• 6.28

Tags

CCSS.HSG.GMD.A.1

We use a lot of formulas for circles. Which one is the area formula?

• Either one with the "C". "C" stands for AREA.

• The one with the "A". "A" stands for AREA.

Tags

CCSS.7.G.B.4

What is line AD called?

• Area

• Circumference

• Radius

• Diameter

A circle has a radius of 6 m. What is its area? Use 3.14 for pi.

• 37.68 m²

• 18.84 m²

• 113.04 m²

• 75.36 m²

Tags

CCSS.7.G.B.4

A circle has a radius of 4 ft. What is its area? Use 3.14 for pi.

• 12.56 m²

• 16 ft²

• 25.12 m²

• 50.24 ft²

Tags

CCSS.7.G.B.4

What is line CB called?

• Circumference

• Diameter

• Radius

• Chord

Tags

CCSS.HSG.C.A.2

A circle has a diameter of 14 cm. What is its area? Use 3.14 for pi.

DIAMETER!

• 615.44 cm²

• 153.86 cm²

• 43.96 cm²

• 87.92 cm²

Tags

CCSS.7.G.B.4