Circumference and Area of Circles Real World

What is the approximate value of Pi?

• 3.14161

• 3.14158

• 3.14159

• 3.14160

What is the relationship between the circumference of a circle and its diameter?

• Circumference = Diameter / π

• Circumference = 2 x Diameter

• Circumference = π x Diameter

• Circumference = Diameter + Radius

What is the significance of Pi in geometry?

• Pi is the value of 3.0

• Pi is only relevant in algebra, not geometry

• Pi is significant in geometry because it is the ratio of a circle's circumference to its diameter.

• Pi is used to calculate the area of a square

My dog's food bowl has the following measures:
Diameter=8 inches
Radius=4 inches
Circumference= ?
What is the circumference? 

• 201.06 inches

• 12.57 inches

• 50.27 inches

• 25.13 inches

The diameter of this cupcake squishy is 10 centimeters. What would be the radius, circumference, and area of the circle?

• r=5, C=15.71, A=78.54

• r=20, C=62.83, A=314.16

• r=5, C=31.42, A=78.54

• r=20, C=15.71, A=78.54

The Wii remote (white remote) has a diameter of 6.3 Inches So does the Wii wheel (black wheel). Find the circumference of the Wii Wheel.

• 39.58 in

• 9.99 in

• 19.79 in

• 124.69 in

Isaac ran around a trampoline with a diameter of 8 feet seven times. How far did he run?

• 25.13 feet

• 175.93 feet

• 12.57 feet

• 87.96 feet

The diameter of the circle is 2 ¾ in. What is the circumference? What is the area?

• C=4.32 in A=13.58 in²

• C=8.64 in A= 15.5 in²

• C=23.76 A= 13.58 in²

• C=8.64 A=23.76 in²

The cardboard circle in the inside of toilet paper has a diameter of 1 ^7/8 in. the diameter of the end of the toilet paper is 4 ^1/4 in. What percentage is the area inside the cardboard circle of the area of total toilet paper?

• approx. 15%

• approx. 20%

• approx. 35%

• approx. 12%

My container that I keep my pens in is a soup can with a diameter of 2 ⅛ inches. What is the area of the bottom?

• 6.16 in²

• 3.55 in²

• 14.19 in²

• 6.67 in²