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CBSE Class 9 Answered

how can we derive heron's formula?
Asked by hemant... | 29 Nov, 2009, 03:42: PM
answered-by-expert Expert Answer

We can derive the Heron's formula, by following steps.

1/ The area of a given triangle is (base)(height)/2.

2/So we select a base as one of the side and draw a perpendicular to it, the height.

3/As we can see the triangle is now divided into two right angled triangles, we can obtain expression for base and height using Pythagorus's formula.

4/We substitute the newly obtained base and height expression into the area expression, and do little algebra to finally get the Heron's formula.

Regards,

Team,

TopperLearning.

Answered by | 29 Nov, 2009, 06:01: PM

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