Circumference or Area of a Circle

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

Mr. Rives’ rotating sprinkler waters his lawn up to a radius of 7 feet. What is the maximum number of square feet of lawn Mr. Rives can expect two sprinklers to cover? Use π≈3.14

Tags

CCSS.7.G.B.4

Mr. Dean paints the top of a round picnic table. The diameter of the table is 6 feet. The paint he uses comes in a can that covers 18 square feet of surface. How many cans of paint does Mr. Dean need to purchase to paint one coat on the top of the table?

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

Fiona created the sculpture here using a square and a circle. How many square feet of material did the circular part of the sculpture require?

Tags

CCSS.7.G.B.4

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

Stephanie painted a circular plate in potter class. The circumference of her plate is 3π units. What is the area of her plate?

Tags

CCSS.7.G.B.4

A street is 125 meters long.  Jackson will ride his bike down the street.  A tire on Jackson’s bike has a diameter of 0.7 meters. How many times will the tire turn to cover the length of the street?

Tags

CCSS.7.G.B.4

What is the area of the circle below?

Tags

CCSS.7.G.B.4