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

True or false, the area of this circle is 60.24

• TRue

• FAlse

Tags

CCSS.7.G.B.4

Ms. Catall is using a compass to find her way out of the woods. The compass has a radius of 4 centimeters. What is the compass's area?

• 49.2 cm²
• 45.6 cm²
• 50.24 cm²
• 55.9 cm²

Tags

CCSS.7.G.B.4

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

• 225 cm
• 30 cm
• 15 cm
• 112.5 cm

Tags

CCSS.7.G.B.4

Find the area of a circle with diameter of 12 ft.

• $113.04\ ft^2$

• $124\ ft^2$

• $156\ ft^2$

Tags

CCSS.7.G.B.4

ENRICHMENT: A farmer grows potatoes on a circular plot of land that has a radius of 20 meters. Each potato plant requires 2 square meters of soil. What is the maximum number of potato plants the farmer can grow?

• 80

• 628

• 1256

• 2512

Tags

CCSS.7.G.B.4

Queen Lizzy's dining room table is round and has a radius of  $4.5$  feet. What is the tabletop's area?

•  $63.585\ ft^2$  
  

•  $68.345\ ft^2$  
  

•  $64.585\ ft^2$  
  

•  $61.345\ ft^2$  
  

Tags

CCSS.7.G.B.4

A circle has an circumference of 56.52 cm. Find the area of the circle. Hint: Find the diameter first.

• 1017.36 cm²

• 254.34 cm²

• 3194.51 cm²

• 798.63 cm²

Tags

CCSS.7.G.B.4

What formula would you use to find the AREA of the shaded region?

• $A=\ 22\left(22\right)-\pi\left(11\right)^2$

• $A=\ 22\left(22\right)-\pi\left(22\right)^{ }$

• $A=\ 22\left(22\right)-\pi\left(22\right)^2$

• $A=\ 22\left(22\right)-\pi\left(11\right)^{ }$

Tags

CCSS.7.G.B.4

Find the radius of the circle given the above information:

• 18.5 m

• 4.3 m

• 8.6 m

• 9 m

Tags

CCSS.7.G.B.4

Tags

CCSS.7.G.B.4