In math, a compound shape consists of two or more simple shapes, such as triangles, squares, circles and rectangles. Another name for a compound shape is a composite shape. An example of this concept is a triangle placed on top of a square.
Know MoreIn geometry, composite shapes are commonly used in problems that deal with finding areas. Solving these types of problems involves taking the separate areas of each shape and then adding them to find the total area of the given composite figure. For example, to find the area of a shape that contains a triangle and rectangle, the length and width of the rectangle and the base and height of the triangle must be known. The formula to find the total area of this composite figure is the area of the triangle plus the area of the rectangle, which is 1/2(b x h)+ ( l x w).
Learn more about ShapesSeveral types of triangles exist, including scalene, isosceles, equilateral, right, obtuse and acute. Triangles are categorized according to their sides, angles or a combination of both.
Full Answer >Triangles are used in construction because they provide sturdy foundations to various infrastructures. Due to their rigid forms, triangles can withstand tremendous pressure.
Full Answer >In an octagon, there are six triangles formed when diagonals are drawn from each vertex. An octagon is a figure that consists of eight straight sides, and it can be either regular or irregular polygons. While irregular octagons do not have sides of equal length, regular octagons do.
Full Answer >Triangles are used to make rafters in buildings and curved domes. Some bridges have triangular structures, and the Egyptians made triangular-shaped pyramids. The shapes help surveyors use triangulation to determine the distance of a specific point from two other points of a known distance apart. Triangulation may be used to measure distances around corners and when digging tunnels, and carpenters use a right-angled triangle to take measurements.
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