Finding Areas and Circumference of Complex Circles

Max has a pizza with a diameter of 100 inches. What is it's radius?

• 50

• 200

• 31415.93

• 7853.98

Find the area of the circle in terms of pi.

Bob has a pool with a radius of 15 feet. What is the diameter of the pool?

• 15 feet

• 706.86

• 700.68

• 30 feet

What is the area of this circle? Leave your answer in terms of pi.

• 25π m²

• 10π m²

• π m²

• 5π m²

What is the area of the shaded region? Round to the nearest hundredth.

• 8π/3

• 2π/3

• 32π/3

• 4π/3

What is the area of this circle?

• 12π

• 6π

• 144π

• 36π

What is the area of this circle?

• 4π

• 8π

• 16π

• π

What is/are the formula(s) to find the area of a circle?

• πr²

• 2πr

• √π

If Pacman's mouth, when open, is 70° and the radius of his mouth is 8mm, what is the exact area of the rest of Pacman's body?

• (464/9)π mm²

• (112/9)π mm²

• (116/9)π mm²

• (28/9)π mm²

is the formula for?

• arc length

• area of a sector

• area of a segment

• arc measure