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# D0343020027

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### D0343020027

1. 1. International Journal of Computational Engineering Research||Vol, 03||Issue, 4||www.ijceronline.com ||April||2013|| Page 20Invention of the plane geometrical formulae - Part IIMr. Satish M. KapleAsst. Teacher Mahatma Phule High School, KherdaJalgaon (Jamod) - 443402 Dist- Buldana, Maharashtra (India)I. INTRODUCTIONA mathematician called Heron invented the formula for finding the area of a triangle, when all the threesides are known. Similarly, when the base and the height are given, then we can find out the area of a triangle.When one angle of a triangle is a right angle, then we can also find out the area of a right angled triangle. Henceforth, We can find out the area of an equilateral triangle by using the formula of an equilateral triangle. Thesesome formulae for finding the areas of a triangles are not exist only but including in educational curriculum also.But, In educational curriculum. I don’t appeared the formula for finding the area of an isosceles triangle withdoing teaching – learning process . Hence, I have invented the new formula for finding the area of an isoscelestriangle by using Pythagoras theorem. I used Pythagoras theorem with geometrical figures and algebric quationsfor the invention of the new formula of the area of an isosceles triangle. I Proved it by using geometricalformulae & figures, 20 examples and 20 verifications (proofs)Here myself is giving you the summary of theresearch of the plane geometrical formulae- Part IIII. METHODFirst taking an isosceles triangle ABCNow taking a, a & b for the lengths of three sides of  ABC.Fig. No. – 2ABSTRACTIn this paper, I have invented the formulae for finding the area of an Isosceles triangle. Myfinding is based on pythagoras theorem.