Circle, Area and Circumference Involving Pi

Circle A has a radius of 21 meters. What is its circumference?

• 131.88

• 65.94

• 207.05

• 103.53

Tags

CCSS.7.G.B.4

How many times greater is the area of Circle 1 than the area of Circle 2​? 

• 9

• 3

• 13.5

• 12

Tags

CCSS.7.G.B.4

The circumference of a circular patio is 53.38 feet. What is the area of the​ patio? Use 3.14 for an approximation for π.

• 17

• 8.5

• 72.25

• 226.9

Tags

CCSS.7.G.B.4

The area of a circular window is 113.04 square inches. What is the diameter of the​ window? Use 3.14 for π.

• 12

• 72

• 6

• 226

Tags

CCSS.7.G.B.4

What does Pi represent?

• The ratio of a square's perimeter to its area

• The ratio of a circle's diameter to its circumference

• The ratio of a rectangle's length to its width

• The ratio of a circle's circumference to its diameter

Tags

CCSS.HSG.GMD.A.1

• 5 cm

• 10 cm

• 2.5 cm

• 7.5 cm

Tags

CCSS.7.G.B.4

Which of the following below would you have to use Pi for?

• the area and circumference of a circle

• the area of a rectangle

• the height of a square

• the length from one edge of a triangle to another

Tags

CCSS.HSG.GMD.A.1

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

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

Tags

CCSS.7.G.B.4