Measurement- Area
Topic: Area
What is the area of an object?
The are of an object is the size of a surface. The amount of space inside the boundary of a
flat (2-dimensional) object such as a triangle or circle, or surface of a solid
(3-dimensional) object.
Every shape has a unique way to calculate area, the table below shows some of these shapes:
| Two-Dimensional Geometric Shapes: |
| Name of the shape: | Picture of shape: | Area Formula: |
| Circle |
|
Area = πr²,
where r is the radius. |
| Triangle |
|
Area = bh,
where b is base, And h is height. |
| Square |
|
Area =l × l,
where l is the length of each side. |
| Rectangle |
|
Area = l × w,
where l is length and w is width. |
| Parallelogram |
|
Area = b × h,
where b is base, and h is perpendicular height. |
Trapezium
|
|
Area= (a +b)h ,
where a and b are lengths of the parallel sides, and h is perpendicular height. |
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