How To: Find the area of triangles and other geometric shapes

Find the area of triangles and other geometric shapes

The video shows us how to find the area of triangles and other geometric shapes. First, before starting to find the areas, we need to know the basics of what do those shapes actually mean and we need a little bit of vocabulary to back us up. First, the parallelograms are four sided figures with two sets of sides which are parallel to each other. The rectangles and the squares qualifies the parallelograms and also the parallelograms except that they have slanted sides and the triangles are three sided figures. Next, starting with the area of a rectangle or square, the area of a rectangle or a square is equal to length times width (L.W). As a example of this, if we have a rectangle with its length as 120 yards and its width as 53 yards, then the area will be equal to 120 times 53, which will be 6360 yards (square). Then, following that, is the triangle whose area is equal to base times height and divide that by 2. For example, if the triangle has a base of 2.6 inches and its height is 3.1 inches, then the area of this triangle will be equal to 2.6 times 3.1 divided by 2 (2.6 x 3.1 /2), which will be equal to 4.03 inches (square). Then coming to the trapezium, its area is equal to h(b1+b2)/2. For an example of this, if the trapezium with its height as 6 cms and base1 is 12cms and base2 is 10cms, then its area will be equal to 6(10+12)/2 which will be equal to 66 cms(square). This is the way to calculate the areas of triangles and other geometric shapes.

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