Circumference Using Pi

The swinging door at the local ice cream parlor has a circular window. What is the approximate distance around the window, in feet? Use π≈3.14

Tags

CCSS.7.G.B.4

Marcel bought a new pair of inline skates. Each wheel on the skates is 41 millimeters in radius. Which shows the number of millimeters traveled in 5 full rotations of a wheel?

Tags

CCSS.7.G.B.4

Coach Tipton marks the soccer field each week with striping paint using a roller wheel such as the one shown here. If the distance the wheel travels in one full rotation is 45 feet, what is the radius of the roller wheel? 
Use π≈3

Tags

CCSS.7.G.B.4

Randy shops for circular stepping stones for his yard. He finds a stone with a circumference of 36 inches. What is the diameter of the stone, in inches? Use π≈3.14

Tags

CCSS.7.G.B.4

Find the circumference of the circle.

• 31.4 cm

• 78.5 cm

• 314 cm

• 15.7 cm

Tags

CCSS.7.G.B.4

The equation C = πd, is used to find the circumference of a circle given it's diameter. This formula can be rearranged to solve for pi. Which equation is written correctly to solve for pi?

• π = Cd

• π = C ÷ d

• π = d ÷ c

• π = C - d

Tags

CCSS.HSA.CED.A.4

What is pi used to find? 

• the perimeter of a square

• the area of a rectangle

• radius of a circle

• circumference of a circle

Tags

CCSS.7.G.B.4

Find the circumference of the circle.

• 14.13 cm

• 63.56 cm

• 28.26 cm

• 127.17 cm

Tags

CCSS.7.G.B.4

If the circumference of a circle is 62.8 meters, what is the diameter of the circle?

• 10 meters

• 20 meters

• 31.4 meters

• 40 meters

Tags

CCSS.7.G.B.4

Find the circumference of the circle.

• 78.5 cm

• 15.7 cm

• 7.85 cm

• 19.6 cm

Tags

CCSS.7.G.B.4