The area of the triangle is half the product of its base and altitude. In the figure below for instance, the area of the two triangles with base and altitude is given by the formula . In this post, we derive the area of a triangle using trigonometry In particular, we want to compute […]

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# Posts tagged with 'area of a triangle'

## Deriving the Area of a Circle — Another Way

In the previous post, we have learned how to find the area of a circle by dividing it into congruent sectors. We have seen that we can divide the circle into as many sectors as we can to better approximate the area of a circle. In this post, we find the area of the circle […]

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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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