Unit 4: Review - Circles, Arc Length, Sector Area, Volume

what is the formula for finding diameter

• r = 2 d

• d = 2 r

• a = m c²

• c = π 2 r

what is the formula for finding radius

• c = π d

• c = 2 π r

• d = r/2

• r = d/2

which segment above represents the diameter

• BC

• AC

• BD

• LM

which segment above represents the radius

• AC

• AB

• LM

Find the radius of the circle

• 20 ft

• 10 ft

• 5.5 ft

• 10

find the diameter of the circle

• 14 m

• 7 m

• 14

• 3.5 m

what is this shape called

• circle

• semi circle

• moon

• triangle

what is the formula for finding area of a circle

• C = π r²

• A = π r²

• A = π r² / 2

• C = 2 π r

Which of the following names a radius?

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

Which of the following names a diameter?

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