When used as recommended, CCA-treated wood is harmless to. people, plants, and animals. Its use provides environmental. benefits as well as decades of service. Specify Wolmanized Â® wood and plywood for applications in which conditions conducive to termites and fungal decay are present.
A quadrilateral is a four-sided polygon with four angles. There are many kinds of quadrilaterals. The five most common types are the parallelogram, the rectangle, the square, the trapezoid, and the rhombus. Move your mouse cursor over the figures at the right to learn more.
Quadrilateral is the âfamilyâ name given to closed four-sided shapes. A rectangle is a special type of quadrilateral because it has four right angles and two pairs of parallel sides. This quadrilateral has no right angles and no parallel sides. Part I: Use the grid on the next page.