subtract the sum of the given angles from the sum of the interior angles. A polygon is any closed plane or 2D shape with multiple straight sides. Circles are not polygons because they're curved ...

During takeoff and landing, Concorde flew at a steep angle, with its front end tilted ... streamlining the plane's shape and allowing it to efficiently pierce the air. It's a classic aerodynamic ...

Following is a full transcript of the video. Wing shapes are designed to generate lift. This keeps the plane in the air. Ice and snow can build up on planes. Ice buildup can change the shape of ...

It has nuclear and thermal shields, and can even withstand EMP pulses. The plane can be refueled in the air, making it able to stay in the air for days at a time. Following is the text of the video.