Applying the understanding of the area of a circle to solve problems

Mrs. Wilson placed the welcome mat shown below on her front door step. What is the area of her welcome mat in square inches? Round to the nearest hundredth. Please just enter the number.

(a)  

Tags

CCSS.7.G.B.4

The DIAMETER of the face-off circle on an ice-hockey rink is 30 feet. Find the area of the circle. Use π = 3.14.

( Formula: A = π * r² )

• 706.5 ft²

• 29.67 ft²

• 545.8 ft²

• 675.6 ft²

Tags

CCSS.7.G.B.4

What is the area of a circle with a radius of 8cm?

 $A=\pi\cdot r^2$  

• 200.96

• 25.12

• 50.24

Tags

CCSS.7.G.B.4

Find the area of the circle.

• 9.42 cm²

• 7.07 cm²

• 28.26 cm²

• 4.71 cm²

Tags

CCSS.7.G.B.4

The diameter of a circle is 12 inches. What is the area of the circle?

• 51.23

• 113.04

• 254.34

• 12.56

Tags

CCSS.7.G.B.4

Jalen skates at a circular rink that has a radius of 4 yards. If he uses 3.14 for

 $\pi,$  what area would he estimate for the skating rink?

• 50.24  $yds^2$  

• 25.12 $yds^2$  

• 38.92  $yds^2$  

• 4.13  $yds^2$   

Tags

CCSS.7.G.B.4

Find the area for a circle with a diameter of 8 feet. 

• 200.96 feet 
• 25.12 feet 
• 12.56 feet 
• 50.24 feet

Tags

CCSS.7.G.B.4

(Fill in the Blank) Area = 3.14(radius)____ Circumference = ___3.14(Radius)

(a)  

Tags

CCSS.7.G.B.4

A circular pie has an area of 706.5 cm². What is the radius of the pie?

• 25 cm

• 12.5 cm

• 15 cm

• 30 cm

Tags

CCSS.7.G.B.4

Marisa purchases a pot for her father's garden. The diameter of the bottom of the pot is 18 cm. What is the area of the pot's bottom? (Round to the nearest whole number.)

• 28 cm²

• 57 cm²

• 254 cm²

• 1017 cm²

Tags

CCSS.7.G.B.4