Circles

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

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

The definition of circumference is

• distance from the center of any point on the circle

• distance from one point to another

• distance around the circle

• distance from the center of any point on the circle

which segment above represents the diameter

• BC

• AC

• BD

• LM

which segment above represents the radius

• AC

• AB

• LM

find the diameter of the circle

• 14 m

• 7 m

• 14

• 3.5 m

Tags

CCSS.7.G.B.4

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

what is the formula for finding the area of a semi-circle

• A = π r²

• C = π r²

• A = π r² / 2

• A = 2 π r

Tags

CCSS.7.G.B.4

what is the radius of the inner circle?

• 12 in

• 8 in

• 8 ft

• 4 in

Tags

CCSS.7.G.B.4