Finding the Circumference: From Pizza to Planet Earth

What is the formula used to calculate the circumference of a circle?

• C = πD

• C = 2πR

• C = R/2

• C = D/π

If the diameter of a pizza is 12 inches, what is its radius?

• 3 inches

• 12 inches

• 24 inches

• 6 inches

How many times does the diameter fit into the circumference approximately?

• 5 times

• 4 times

• 3 times

• 2 times

What is the approximate value of Pi used in the calculations?

• 2.14

• 3.5

• 3.14

• 3

What is the calculated circumference of a 12-inch pizza?

• 36 inches

• 38 inches

• 40 inches

• 42 inches

What is the diameter of the Earth used in the calculations?

• 6,000 miles

• 12,000 miles

• 10,000 miles

• 8,000 miles

Using the formula C = 2πR, what is the first step to find the Earth's circumference?

• Multiply D by π

• Divide D by 2

• Multiply R by 2

• None of the above

What is the value of 2π used in the Earth's circumference calculation?

• 6.0

• 6.5

• 6.3

• 6.28

What is the approximate circumference of the Earth calculated in the video?

• 26,000 miles

• 25,000 miles

• 24,000 miles

• 23,000 miles

What humorous suggestion is made for traveling around the Earth?

• Using a car

• Using a skateboard

• Walking

• Flying