Take any quadrilateral such as ABCD above. Construct the midpoints of each side and join them to form another quadrilateral EFGH. Varignon's Theorem asserts that the ...

WHAT is the force of the word “rigid,” introduced into the statement and proof of the parallelogram of forces and other theorems in Statics, as quoted by Mr. W. E. Johnson from the ordinary text-books ...

The base and perpendicular height are at right angles. Showing that a parallelogram has the same area as a rectangle: Split the parallelogram into a right-angled triangle and a trapezium. Move the ...

For hundreds of years many have attempted to prove Newton's Parallelogram Law of Forces but could not come up with a completely satisfactory one. Recently a Bangladeshi mathematician, Professor Ahmed ...

NCERT Exemplar class 9 Mathematics problems’ PDF for Chapter 9: Areas of Parallelograms and Triangles is available in this article. Students can download the PDF of the chapter from the link available ...