Circles Review 7th Grade

Find the perimeter of the figure.

Does this situation describe circumference or area? "the total number of equally sized tiles on a circular floor"

What is the formula for area of a circle?

If the length of segment AB is 21 units, what is the length of segment OC?

Find the area of a circle whose circumference is 15.7 feet. DO NOT ROUND YOUR ANSWER.

Mrs. Miller ordered a pizza with a 10 inch diameter. Mrs. McCheynne ordered a pizza with a 12 inch diameter. What is the difference in area of the two pizzas?

Find the area of the combined figure.

Find the area of a circle whose circumference is 34.54 inches. DO NOT ROUND YOUR ANSWER.

What is the diameter of a circle whose circumference is 13.188 inches?

Mrs. Rowe is pushing her toddler in a stroller around a lake. The lake is a circle with a diameter of 1.5 miles. How far does Mrs. Rowe walk if she walked all the way around the lake?

Does this situation describe circumference or area? "the distance a bike will go with one turn of the wheel"

What is the area of a circle with a diameter of 46 miles?

A farmer has a circular shaped field. Fertilizer costs $0.27 per square yard. How much will the farmer spend to fertilize the field? The diameter of the field is 130 yards.

Find the circumference of a circle with a radius of 9.5 inches.

What is the formula for circumference of a circle?

What mathematical term do we used to describe segment RO?