Area Tutorial 4 – Derivation of the Area of a Circle

We have learned that the area of a parallelogram is the product of its base and its height, and the circumference of a circle with radius is . To find the area of a circle with radius , divide it into congruent sectors (blue and red divisions) then arrange them as shown below. Figure 2 […]
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Area Tutorial 3 – Area of a Parallelogram

In the previous area computation tutorials, we have learned how to compute the area of a rectangle and the area of a triangle.  In this tutorial, we are going to learn how to compute the area of a parallelogram. In Figure 1, we have parallelogram ABCD with given base and the dashed segment as its […]
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