Area and Circumference

The radius is....

• a line that crosses through the center and touches each edge 
• the center point of a circle 
• a line from the center point to the edge of the circle
• an element in science

Tags

CCSS.HSG.C.A.2

Which segment is not a radius?

• CA
• CB
• CD
• LM

Tags

CCSS.HSG.C.A.2

What is the radius?

• 18
• 72
• 38
• 14

Tags

CCSS.7.G.B.4

What is the diameter?

• 8
• 16
• 10
• 4

Tags

CCSS.7.G.B.4

find the area of the circle below.

• 100 cm
• 225 cm
• 9 cm
• 28.26 cm

Tags

CCSS.7.G.B.4

Find the area of the circle.  Use 3.14 for π. Round to the nearest tenth if necessary.
a circle with radius 48 mm

• 7,234.56 mm²
• 2,216.46 mm²
• 7,934.59 mm²
• 7,314.22 mm²

Tags

CCSS.7.G.B.4

_{Find the Circumference.}

• 31.4 in
• 78.5 in sq
• 15.7 in
• 3.14 in 

Tags

CCSS.7.G.B.4

What is the circumference?

• 50
• 96
• 24
• 18

Tags

CCSS.7.G.B.4

A circular swimming pool is 21 feet in diameter.
How many feet around is the pool?

• 10.5 ft
• 42 ft
• 65.97 ft
• 131.88 ft

Tags

CCSS.7.G.B.4

Daniel wants to buy cookies for her friend. The
radius of a cookie is 5 inches. What is the cookie’s 
circumference?

• 10 in
• 2.5 in
• 15.7 in
• 31.4 in 

Tags

CCSS.7.G.B.4