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 22π , what is the diameter?

• 22 ft
• 11 ft
• π ft
• 0 ft

Tags

CCSS.7.G.B.4

Which of the following names a radius?

• segment AC
• segment DB
• segment AB
• segement BC

Tags

CCSS.HSG.C.A.2

Which of the following names a diameter?

• segment AC
• segment DB
• segment AB
• segment BC

Tags

CCSS.HSG.C.A.2

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

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

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

Tags

CCSS.HSG.C.B.5

An angle whose vertex lies on the circle and whose sides are chords of the circle

• inscribed angle 
• central angle
• arc
• radius

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.A.3

A chord is a segment that connects ___________

• the center to the endpoint
• to one point outside the circle
• a central angle
• 2 endpoints of a circle

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