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 44 π feet, what is the radius?

• 22 ft
• 44 ft
• 33 feet
• 3.14 feet

Tags

CCSS.7.G.B.4

The definition of a circle is

• set of all points in a plain that are the same distance from a point called the center

• the distance around a share

• a large figure

• a pizza, orange, plum, or watermelon

Tags

CCSS.HSG.CO.A.1

The definition of radius is

• distance from one point to another point

• distance around the circle

• distance from the center to any point on the circle

• distance across the circle through the center

Tags

CCSS.HSG.C.A.2

The definition of diameter is

• distance from the center of any point on the circle

• distance across the circle through the center

• distance from one point to another

• distance around the circle

Tags

CCSS.HSG.C.A.2

which segment above represents the diameter

• BC

• AC

• BD

• LM

Tags

CCSS.HSG.C.A.2

which segment above represents the radius

• AC

• AB

• LM

Tags

CCSS.HSG.C.A.2

A line segment connecting any two points on a circle is called a _____________. 

• diameter
• chord
• radius
• circumference 

Tags

CCSS.HSG.C.A.2

CCSS.HSG.CO.A.1

What is the circumference?

• 50.24

• 25.12

• 24.5

• 18.3

Tags

CCSS.7.G.B.4