Suppose you are asked to find the area of a rectangle that is 2.1- wide by 5.6- long. Your calculator answer would be 11.76 . Now suppose you are asked to enter the answer to two significant figures.
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If the figure is a rectangle, the area is 60. If the figure is a triangle, the area is 30.
The answer depends on what information about the rectangle you do have.
find the area of triangles(reflecting surfaces) and also the area of rectangle or square(base)and find the sum of both.
If the figure is a rectangle, the area is 60. If the figure is a triangle, the area is 30.
In order to find the area of a rectangle, multiply the length by the width of the rectangle. For example: If the length of a rectangle is 5cm and the width of a rectangle is 2cm, then the area of the rectangle would be 5cm X 2cm = 10cm².