After CFA Homework

The homeowners association wants to enclose the playground in a fence. How much fencing will they need to purchase? Is this question finding the area or the circumference?

• area
• circumference
• neither

Tags

CCSS.7.G.B.4

Your Geometry teacher rents a fast car for the weekend. Her friend, a Physics teacher, uses a stopwatch to time how long it takes your teacher to make one complete revolution about the track. Is this question circumference or area?

• Circumference
• Area

Tags

CCSS.7.G.B.4

Which segment is not a radius?

• CA
• CB
• CD
• LM

Tags

CCSS.7.G.B.4

Find the radius of a circle if the area is 254.5 cm²

• 3 cm

• 9 cm

• 12 cm

• 14 cm

If the area of this pancake is 12.6 in², what would the diameter of a plate need to be for it to fit?

• 22 inches

• 7 inches

• 4 inches

• 2 inches

Tags

CCSS.7.G.B.4

What is the distance the tread would need to be on this bike wheel?

• 17.8 inches

• 88 inches

• 2463 inches

• 175.9 inches

Tags

CCSS.7.G.B.4

Many circus performances are still held in a ring with area of 1385 ft². What is the distance from the entrance of the ring to the center?

• 42 ft

• 21 ft

• 220 ft

• 11.8 ft

A circular pool needs a cover for the winter. Is this question finding the area or the circumference?

• area

• circumference

• neither

Tags

CCSS.7.G.B.4

The circumference of a basketball is 30 inches. How wide does a hoop need to be for the ball to fit through?

• 4.8 in

• 5.5 in

• 19 in

• 9.5 in

Tags

CCSS.7.G.B.4

A cell phone tower has a circular coverage area. If the furthest distance the tower reaches for coverage is 34 miles. What is the total area the cell phone tower covers?

• 3,631.7 mi²

• 106.8 mi²

• 213.6 mi²

• 11,409.3 mi²