In the figure below, both have the same center, and the radius of the larger circle is r. if the radius of a smaller circle is 3 units less than r, which of the following represents the area of the shaded region.

Avegetable garden and a surrounding path are shaped like a square together are 12 ft wide. the path is 1 feet wide. if one bag of gravel covers 8 square feet, how manu bags are needed to cover the path? round your answers to the nearest tenth.

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

Turner's mom measured his room to see how long the wallpaper border needed to be. if two walls are 15 feet long and two walls are 12 feet long, how long should the strip of border be cut?