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).
Flying buttress. Flying buttress, masonry structure typically consisting of an inclined bar carried on a half arch that extends (âfliesâ) from the upper part of a wall to a pier some distance away and carries the thrust of a roof or vault.