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 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

Which segment is the diameter?

• AC
• BD
• LM
• CE

Tags

CCSS.HSG.C.A.2

What is the equation of the circle, with centre (-4,5) and radius 6 units?

• (x - 4)^2 + (y + 5)^2 = 6
• (x - 4)^2 + (y + 5)^2 = 36
• (x + 4)^2 + (y - 5)^2 = 6
• (x + 4)^2 + (y - 5)^2 = 36

Tags

CCSS.HSG.GPE.A.1

Which of the following names a radius?

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

Tags

CCSS.HSG.C.A.2

A line that intersects a circle at exactly one point

• secant
• circle
• chord
• tangent

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.A.4

Determine the measure of ∠UVS

• 19.5°

• 39°

• 78°

• 102°

Tags

CCSS.HSG.C.A.2

How many degrees are in a circle?

• 90
• 180
• 270
• 360

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

What is the measure of arc AYB

• 50
• 100
• 180
• 260

Tags

CCSS.HSG.C.B.5

What is the area of a circle with the diameter of 10cm ?

• 66cm
• 78.5cm
• 66.5cm
• 10m

Tags

CCSS.7.G.B.4