A: A rhombus is an equilateral parallelogram, which is a two-dimensional, four-sided figure in which opposite sides are parallel and all sides have equal length. A square fits this definition. However, it is usually considered a special case, and some definitions of a rhombus specify that squares are not included.
Who invented a piston-driven steam engine that could power all kinds of industrial machinery? A. Edmund Cartwright B. James Hargreaves C. James Watt D. Richard Arkwright. JAMES WATT invented a piston-driven steam engine that could power all kinds of industrial machinery.
THE END! The Inventor James Watt substantially improved on Newcomen's model and patented his own steam engine in 1769. Steam engines had previously depended on atmospheric pressure to push a piston (a sliding piece of metal moved by pressure) into a cylinder (a hollow tube) and create a vacuum by the cooling steam.