Corresponding sides are a pair of matching sides in two different shapes (size does not matter). In the field of geometry, the concept of corresponding sides plays an important role to prove various triangular theorems.
The Boeing B-17 Flying Fortress is a four-engine heavy bomber aircraft developed in the 1930s for the United States Army Air Corps (USAAC).
Gothic Flying ButtressesThe flying buttress is the defining external characteristic of gothic architecture. These buttresses effectively spread the weight of the new designs, taking the weight off the walls and transferring force directly to the ground.