Circle Formula

Circumference = 2 x Pi x _________

• Area

• The number of F's you have in the grade book.

• Radius

• Diameter

Diameter = _______ x Radius

• Circumference

• 
• 2

• Eleventy Seven

Radius = __________ Divided by 2

• Diameter

• Circumference

• 
• PEMDAS

_________= Pi x (Radius x Radius)

• Perimeter

• Area

• Circumference

• Diameter

Pi is approximately equal to?

• Threeve (a combination of 3 and five)

• 19.6

• 7.2

• 3.14

Circumference = 2 x _______ x Radius

• 
• Area

• Diameter

• BBQ Sauce

The Radius is half the _______ of a circle

• Best Friend.

• Diameter

• Area

• Circumference

If the Diameter of a circle is 8 the Radius is ______.

• 2

• 16

• 4

• Lonely

If the radius of a circle is 14 km, what is the area?

• 28 km

• 615.44 km²

• 87.92 km²

• 615.44 km

Find the circumference of a circle with a radius of 5.2 ft.

• 32.66 ft

• 10.4 ft

• 32.66 ft²

• 84.91 ft²