CIRCUMFERENCE AND AREA OF CIRCLES

Meteor Crater

Scientists have identified the faint outline of part of an ancient meteor crater on the coast of Mexico. The rest of the approximately circular crater lies underwater. The crater’s diameter is about 170 kilometers. Approximate the distance around the crater to the nearest kilometer.

Norman Window

A Norman window from Congress Hall in Philadelphia consists of a rectangle and a half circle, as shown. Find the area of the window to the nearest square foot.

Binding

CIRCUMFERENCE AND AREA OF CIRCLES

A circular rug is 6 feet (ft) in diameter. Binding for the edge costs £1.50 per ft2. What will it cost to bind around the rug?

Find the perimeter and area of each figure. Round your answers to one decimal place.