Annulus Area

An annulus is located between a circle of radius 5 cm and a circle of radius 7 cm. What is the area of the annulus?
A = __________________

• 57.8 cm²

• 71.1 cm²

• 75.4 cm²

• 63.6 cm²

Find the area of the annulus.

• 4 pi cm²

• 36 pi cm²

• 16 pi cm²

• 12 pi cm²

Find the area of this annulus.

• 125.7 cm²

• 40 cm²

• 103.7 cm²

• 33 cm²

Find the area of the annulus.

• 125π in²

• 75π in²

• 50π in²

• 100π in²

Find the area of the shaded region.

• 6π cm²

• 60π cm²

• 36π cm²

• 64π cm²

If r = 12 cm and R = 18 cm, what is the exact area of the shaded region in terms of ㄫ?

• 280ㄫ sq.cm

• 190ㄫ sq.cm

• 180ㄫ sq.cm

• 80ㄫ sq.cm

Analyze the given figure and solve for the exact area of the annulus.

• 69π sq. in

• 36π sq. in

• 33π sq. in

• 63π sq. in

This is a ten peso coin from the Philippines. If the small circle inside has a radius of 20 mm and the radius of the coin itself is 26 mm, what is the approximate area of the region shown in the figure?

• 866.64 sq. mm

• 880.64 sq. mm

• 1888.64 sq. mm

• 808.64 sq. mm

Find the area of the shaded region.

• 87.96 cm²

• 153.9 cm²

• 615.75 cm²

• 1231.51 cm²

Find the area of the shaded region.

• 50 pi 

• 25 pi 

• 75 pi 

• 100 pi