Circles circumference

What famous scientist was born on Pi Day in 1879?

• Archimedes

• Einstein

• Galileo

• Newton

Tags

CCSS.L.8.5A

What do you get when you divide the circumference of a Jack-o-Lantern by its diameter?

• Pumpkin

• Jack-o-Lantern

• Pumpkin Pi

• Pi in the Sky

Pi is the ratio of a circle’s _________ to _________. 

• radius/diameter
• circumference/diameter
• area/circumference
• circumference/radius

Tags

CCSS.7.G.B.4

What is pi used to find?

• the perimeter of a square

• the area of a rectangle

• radius of a circle

• circumference of a circle

Tags

CCSS.7.G.B.4

How many digits are in pi?

• 10 trillion

• 5 billion

• infinite

• a lot

Tags

CCSS.HSG.GMD.A.1

What does "circumference" mean?

• Space a circle takes up
• Distance around a circle
• Line from one side of a circle to another
• Line from center of circle to side

Tags

CCSS.HSG.C.A.2

Does this picture show the diameter or radius of a circle?

• Diameter
• Radius

Does this picture show the diameter or radius of a circle?

• Diameter
• Radius

What is the formula for circumference of a circle given the diameter?

• C = pi x r
• C = pi x 2r
• C = pi x D
• C = pi x 2D

Tags

CCSS.7.G.B.4

What is the formula for circumference of a circle given the radius?

• C = pi x r
• C = pi x 2r
• C = pi x D
• C = pi x 2D

Tags

CCSS.7.G.B.4