Circles

which segment above represents the diameter

• BC

• AC

• BD

• LM

which segment above represents the radius

• AC

• AB

• LM

what is the formula for finding area of a circle

• C = π r²

• A = π r²

• A = π r² / 2

• C = 2 π r

Tags

CCSS.7.G.B.4

Which of the following names a radius?

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

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

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

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

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

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

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

An angle whose vertex is the center of a circle

• central angle
• inscribed angle
• minor arc
• major arc

Tags

CCSS.HSG.C.A.2

In the equation (x+2)²+(y-3)²=4, the radius of the circle is...

• 4
• 2
• 3
• 16

Tags

CCSS.HSG.GPE.A.1