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22 Mar 2021, 21:50
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Area of a Triangle from Sides
You can calculate the area of a triangle if you know the lengths of all three sides, using a formula that has been known for nearly 2000 years.
It is called "Heron's Formula" after Hero of Alexandria (see below)
Just use this two step process:
Step 1: Calculate "s" (half of the triangles perimeter):
s = (a+b+c)2
Step 2: Then calculate the Area:
herons formula A =\sqrt{( s(s-a)(s-b)(s-c) )}
You can calculate the area of a triangle if you know the lengths of all three sides, using a formula that has been known for nearly 2000 years.
It is called "Heron's Formula" after Hero of Alexandria (see below)
Just use this two step process:
Step 1: Calculate "s" (half of the triangles perimeter):
s = (a+b+c)2
Step 2: Then calculate the Area:
herons formula A =\sqrt{( s(s-a)(s-b)(s-c) )}
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
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22 Mar 2021, 21:56
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devsawla
GMAT doesn't expect candidates to use this formula so while this may sound to be useful, all users of this formula actually end-up spending more time on GMAT questions than needed without this formula using the fundamental concept of geometry.
So my recommendation is against using this formula in GMAT unless nothing else strikes in test scenario.
GMAT doesn't expect candidates to use this formula so while this may sound to be useful, all users of this formula actually end-up spending more time on GMAT questions than needed without this formula using the fundamental concept of geometry.
So my recommendation is against using this formula in GMAT unless nothing else strikes in test scenario.
devsawla
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
