Area of circle

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

• Radius
• Diameter

Tags

CCSS.7.G.B.4

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

• Radius
• Diameter

Tags

CCSS.4.G.A.1

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

• Diameter
• Radius

Tags

CCSS.7.G.B.4

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

• Diameter

• Radius

Tags

CCSS.5.G.B.3

CCSS.5.G.B.4

The radius is....

• a line that crosses through the center and touches each edge 
• the center point of a circle 
• a line from the center point to the edge of the circle
• an element in science

Tags

CCSS.HSG.C.A.2

CCSS.HSG.CO.A.1

The circumference of a circle is

• The measurement from an edge of a circle to another edge.
• The measurement around the circle
• The measurement from an edge of a circle to another edge going through the center
• The measurement from the center of the circle to an edge of the circle

Tags

CCSS.7.G.B.4

The diameter of a circle is:

• The measurement around the circle.

• The distance from an edge of a circle to another edge through the center.

• The distance from the center of the circle to an edge of a circle

If my diameter is 19 inches, what is my radius?

• 38 inches
• 9.5 inches
• 59.66 inches
• 119.32 inches

Tags

CCSS.7.G.B.4

What is the area of this circle?

A = πr²

• 6082.12

• 1520.53

• 1893.14

• 1292.92

Tags

CCSS.7.G.B.4

Find the area of the circle

A = 3.14 x r x r

• 43.96

• 153.86

• 87.82

• 307.72