All Double Combinations (Superimposed) of Six Geometric Figures (Circle, Square, Triangle, Rectangle, Trapezoid and Parallelogram), 1977 etchings Prints & Graphic Art each 31.125 x 31.125 in Signed, ...
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 ...