Applying Perimeter, Circumference, and Area

What is the area of this semicircle (half circle)? The diameter is 8 cm.

• 100.48 cm²

• 80 cm²

• 200.96 cm²

• 25.12 cm²

The figure shows 2 circles inside a trapezoid. Which procedure should be used to find the area of the purple region?

• Subtract the perimeter of the trapezoid from the area of both circles.

• Subtract the circumference of both circles from the area of the trapezoid.

• Subtract the area of the trapezoid from the area of both circles.

• Subtract the area of both circles from the area of the trapezoid.

Find the area of the shaded region: 

• 350 cm²

• 137.5 cm²

• 212.5 cm²

• 484.2 cm²

A puppy is tied to a stake in a yard with a 10 foot leash, so that he can "use the facilities" without running away.  It is so energetic that it runs laps.  How far will the puppy run if it runs 50 laps?

• 500 feet

• 1570 feet

• 2275 feet

• 3140 feet

Juan is walking a circular track. The diameter of the track is 6 feet. If he walks 3 times around the track, how far does he walk?

• 18.84

• 56.52

• 200.96

• 15.7

What is the PERIMETER of this rectangle?

• 22 sq. yd.

• 22

• 22 cm

• 22 yd.

Daniel wants to buy cookies for her friend. The
radius of a cookie is 5 inches. What is the cookie’s 
circumference?

• 10 in

• 2.5 in

• 15.7 in

• 31.4 in 

What is the perimeter?

• 20

• 40

• 60

Area represents the

• The number of square units inside a figure

• The number of units around a figure

Perimeter represents the

• Number of square units inside a figure

• The numbers of units around the figure