Pi Circles

find the area of the circle below.

• 100 cm

• 225 cm

• 9 cm

• 28.26 cm

What is the formula for area of a circle given the radius?

• A = πr

• A = 2πr

• A = πd

• A = πr²

Find the area of a circle with a diameter of 6 inches.

The window in the attic has a diameter of 4 yards. What is the area of the window?

A =πr²

• 6.28 square yards

• 12.56 square yards

• 50.24 square yards

• 25.12 square yards

What is the approximate numerical value of this sign?

• 3.11

• 3.14

• 4.13

• 6.28

What digits do we use for Pi?

• 31.4

• 3.14

• 314

What number is pi?

• 41

• 00

• 3.14

• 5.14

what is the definition of pi

select ALL that apply

• it is the sixteenth letter in the greek alphabet

• it has a represented value of 3.14

• it has a represented value of 22/7.

• Its something you eat...

Calculate the area of the quarter circle.

• 100.48 cm²

• 50.24 cm²

• 200.96 cm²

• 25.12 cm²

find the area of the circle below.

• 100 cm

• 225 cm

• 9 cm

• 28.26 cm