A convex quadrilateral is a square if and only if it is any one of the following: 1  a rectangle with two adjacent equal sides. 2  a rhombus with a right vertex angle. 3  a rhombus with all angles equal. 4  a parallelogram with one right vertex angle and two adjacent equal sides. 5  a quadrilateral with four equal sides and four right angles.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ that was what the answer was before, the real answer is Solymon Merrick patented the first wrench in 1835. The physics of a wrench are that the tool works as lever. There are notches at the mouth for gripping. The wrench is pulled at a right angle to the axes of the lever-action and the bolt or nut. Some wrenches have mouths that can be tightened to better fit various objects that need turning. Monkey Wrench Charles Moncky invented the monkey wrench around 1858.
Â· just now. Christopher Latham Sholes(1819-1890) Sholes was a U.S. mechanical engineer who invented the first practical modern typewriter, patented in 1868. Sholes invented the typewriter with partners S. W. Soule and G. Glidden, that was manufactured (by Remington Arms Company) in 1873. He was born February 14, 1819 in Mooresburg, Pennsylvania, and died on February 17, 1890 in Milwaukee, Wisconsin.