Circles

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

• C = π r
• C = 2 π r
• C = π d
• C = 2 π d

Tags

CCSS.7.G.B.4

If the area of a circle is 25 π in² , then the diameter is?

• 10 in
• 5 in
• 25 in
• pi in

Tags

CCSS.7.G.B.4

If the circumference of a circle is 22 π ft, what is the radius?

• 22 ft
• 11ft
• π ft
• no ft

Tags

CCSS.7.G.B.4

The _____ is the distance from the center to any point on the circle.

• diameter
• radius
• π
• center

Tags

CCSS.HSG.C.A.2

CCSS.HSG.CO.A.1

Which segment is the diameter?

• AC
• BD
• LM
• CE

Tags

CCSS.HSG.C.A.2

What is the diameter?

• 8

• 16

• 10

• 4

Tags

CCSS.7.G.B.4

The space contained inside of a circle is called the...

• radius

• diameter

• circumference

• area

Tags

CCSS.HSG.GMD.A.1

The diagram below shows the radius of the circular opening of a bowl. What is the approximate circumference of the opening in centimeters?

• 29.83

• 9.5

• 59.66

Tags

CCSS.7.G.B.4

Mrs. Wilson placed the welcome mat shown below on her front door step. What is the area of her welcome mat in square feet?

• A = 30.15

• A = 25.12

• A = 56.12

• A = 16.5

Tags

CCSS.7.G.B.4

What is the part of the circle highlighted in red called?

• semi-circle arc
• major arc
• minor arc
• sector

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.B.5