circles intro

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

• Radius
• Diameter

Tags

CCSS.4.G.A.1

The radius of a circle is

• The measurement from the center of a circle to an edge of the circle.
• The measurement around the circle
• The measurement from and edge of the circle to another edge through the center
• A line perpendicular to the diameter of the circle

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

If you multiply 2 × radius then you will get the...

• radius

• diameter

• circumference

• area

If a circle has a radius of 10 ft. then which statement is true?

• The radius is 5 ft. 
•  The diameter is 5 ft
• The radius is 20 ft.
• The diameter is 20 ft.

Tags

CCSS.7.G.B.4

If a circle has a radius of 16 ft. then which statement is true?

• The radius is 8 ft. 
•  The diameter is 8 ft
• The radius is 32 ft.
• The diameter is 32 ft.

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

CCSS.4.G.A.2

The diameter of a circle is:

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

Tags

CCSS.HSG.C.A.2

If you are given the diameter, how can you calculate the radius?

• Multiply the diameter by 2
• Divide the diameter by 2
• Add 2 to the diameter
• Subtract 2 from the diameter

Tags

CCSS.7.G.B.4

If a circle has a diameter of 16 ft. then which statement is true?

• The radius is 8 ft. 
•  The diameter is 8 ft
• The radius is 32 ft.
• The diameter is 32 ft.

Tags

CCSS.7.G.B.4

If my diameter is 25 inches, what is my radius?

• 50 inches

• 12.5 inches

• 78.5 inches

• 25 inches