Pi quiz

What number is Pi rounded to?

• 3.17

• 3.16

• 3.14

• 3.12

what 3 numbers come after 3.14?

• 159

• 926

• 623

• 793

The formula we use to find the area of a circle is:

• $\pi r^2$

• $\pi d$

• $c\div\left|\pi^2\right|$

• $d^2$

What is the approximate area of a circle with a diameter of 14 cm?

• 615.44

• 43.96

• 87.92

• 153.92

Obtain Pi, divide a circle's:

• Circumference by Diameter

• Diameter by Circumference

• Diameter by Radius

• Radius by Circumference

A circle's circumference refers to it's:

• Area

• Perimeter

• Radius

• Latitude

The area of a circle if 75.36 cm. What is it's radius?

• 12

• 10

• 14

• 16

Why do use the pi symbol to represent the number?

• mathematicians prefer using letters instead of numbers

• The number is never used in algebra

• Writing the actual number would be impossible

• The number is rational

Does pi ever end?

• Yes

• no

What formula do we use to find a circle's circumference?

• $\pi d$

• $\pi r\times2$

• $\pi c$

• $d\div\pi$