Because the speed of light is the same for every observer,
no matter how fast or in what direction he may be moving.
Everything else in between is just algebra.
Chat with our AI personalities
he made the theorem C squared = A squared + B squared and A squared = C squared - B squared or B squared = C squared - A squared
9 squared is 81 and 16 squared is 256
104
Nine feet squared equates to 1,296 inches squared. ** feet squared x 144 = inches squared
feet squared