Derivation of the Proof of the Area of a Rectangle

In getting the areas of figures, calculating the area of a square is probably the easiest. We can easily calculate the area of a square by squaring its side length . For example, a square with side length 5 units has area 25 square units. What about the area of a rectangle? Based on the […]
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The Derivation of the Area of a Circle

Finding the area of a circle is not as easy as finding the areas of┬átriangles, parallelograms, and trapezoids. The circumference of a circle is curved, and it is not easy to fit squares in the bounded region. Knowledge in calculus is required to prove the circle’s area formally, but in this post, I will discuss […]
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Using the Area of a Rectangle to Derive the Area of a Triangle

The area of a rectangle is the product of its base and its height. We will use this fact to derive the area of a triangle. If we can show that the area of the rectangle and the area of a triangle are related, then we can find the formula. To show the relationship between […]
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