RETAKE Circumference

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Tags

CCSS.HSG.C.A.2

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Tags

CCSS.7.G.B.4

Find the radius of a circle whose diameter is 40 ft.

HINT: Radius is HALF of the diameter.

• 40ft

• 80ft

• 20ft

• 45ft

What is the circle's radius?

HINT: Radius is HALF of the diamter.

• 5 cm

• 10 cm

• 20 cm

What is the formula for the CIRCUMFERENCE of a circle?

• $C=\pi r^2$

• $C=\pi r$

• $C=2\pi r$

• $C=2\pi d$

Tags

CCSS.7.G.B.4

What is the formula for the CIRCUMFERENCE of a circle?

• $C=\pi r^2$

• $C=\pi r$

• $C=2\pi r$

• $C=2\pi d$

What is the formula for the CIRCUMFERENCE of a circle?

• $C=\pi r^2$

• $C=\pi r$

• $C=2\pi r$

• $C=2\pi d$

To find pi we divide:

• Diameter/Circumference

• Circumference/Diameter

• Circumference/Radius

• Circumference/Radius

Tags

CCSS.7.G.B.4

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.7.G.B.4

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