A figure (or shape) that can be divided into more than one of the basic figures is said to be a composite figure (or shape). The area of a composite figure is calculated by dividing the composite figure into basic figures and then using the relevant area formula for each basic figure.
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Split the figure into smaller shapes that can have their areas easily calculated and add them all together.
Example: Find the area of the hexagon A..F below:
. . . . . . . . . . . . .
.A ------ B . . . .
. . | . . . | . . . . . .
. . | . . . | . . . . . .
. . | . . . | C . . . .
. . | . . . ----- .D .
. . | . . . . . . | . . .
. . | . . . . . . | . . .
.F ---------- E . .
. . . . . . X . . . . . .
. . . . . . . . . . . . . .
By joining vertex C to point X so that length XE is the same as side CD will split the hexagon into 2 rectangles (ABXF and CDEX) which can have their areas calculated and added together to give the area of the hexagon A..F.
A figure (or shape) that can be divided into more than one of the basic figures is said to be a composite figure (or shape).For example, figure ABCD is a composite figure as it consists of two basic figures. That is, a figure is formed by a rectangle and triangle as shown below.The area of a composite figure is calculated by dividing the composite figure into basic figures and then using the relevant area formula for each basic figure.Example 20Find the area of the following composite figure:Solution:The figure can be divided into a rectangle and triangle as shown below.So, the area of the composite figure is 216 cm2.
You need to break down the composite figure into simpler shapes whose areas you can calculate using appropriate formule and then add together the areas of all the individual bits.
The remaining figure is the are of polygons that bounded by three dimensional figure .
Yes, trapezoids are a figure
composite!