Circumference vs Area

For the school fair, Helen paints a large bullseye for the beanbag toss. The radius of the innermost circle is 6 inches. The diameter of the middle circle is 2 feet. The diameter of the largest circle is 6 feet. Helen paints the shaded region of the bullseye. How many square feet does Helen paint? Use π≈3.14

Tags

CCSS.7.G.B.4

The diameter of the pizza below is 16 inches. If there are 8 equal sized slices of pizza, what is the area of each slice?

Tags

CCSS.HSG.C.B.5

A park is shaped like a circle. Students determine that to walk along the diameter of the park you would need approximately 76 steps. How many steps would be needed to walk along the outside of the circle?

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

Alyssa wants to tie a ribbon around a basketball.  She needs enough ribbon to wrap around the basketball and 20 inches extra to tie the bow.  The basketball has a 4.2 inch radius.  How many inches of ribbon will she need?

Tags

CCSS.7.G.B.4

The diameter of Mickey’s Fun Wheel in Disneyland is 45.45 meters.  What is the circumference of the Fun Wheel?

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

A group of students stood in a circle to play a game. The circle had a diameter of 13 meters. Which measurement is closest to the circumference of the circle in meters?

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