Note : Consider only integer part from answer obtained in above formula ( For example the answer may come 13.12 then consider only “13”. Where “n” = number of unit triangles in a side How many possible triangles are in the above figuresįormula to count number of triangles like above particular pattern type of Triangle Type – 4 : Counting triangles with in the particular pattern of Triangle How many triangles are in the above figuresįigure – 13:Triangle counting in Fig – 13 = 5įormula : Here number embedded triangles in outer triangle ” n” and horizontal parts “m” then possible triangles is 4n + 1įigure – 14: Triangle counting in Fig – 14 = 9 ( Here n= 2 )įigure – 15:Triangle counting in Fig – 15 = 13 ( Here n= 3 ) Type – 4 : Counting triangles with in embedded Triangle Solution : Here number of vertical parts ” 5″ and horizontal parts “3” then possible triangles is 5 x 3 x 6 /2 = 45 Solution : Here number of vertical parts ” 4″ and horizontal parts “3” then possible triangles is 4 x 3 x 5 /2 = 30įigure – 12: Triangle counting in Fig – 12 = 45 Type – 3 : Counting triangles with the Triangle having number of bisects with vertex and horizontal linesĬount the number of triangles in the above pictureįigure – 9: Triangle counting in Fig – 9 = 2įigure – 10: Triangle counting in Fig – 10 = 6įormula : Here number of vertical parts ” n” and horizontal parts “m” then possible triangles isįigure – 11: Triangle counting in Fig – 11 = 30 Hint : No of parts ” n” = 5 so according to formula 5 x 6 /2 = 15. Hint : No of parts ” n” = 4 so according to formula 4 x 5 /2 = 10įigure – 8 : Number of possible triangles in Fig – 8 = 15 Type – 2 : Counting triangles with the Triangle having number of bisects with vertexĬount the number of possible triangles in the above figuresįigure – 5: Number of possible triangles in Fig – 5 = 1įigure – 6 : Number of possible triangles in Fig – 6 = 3įormula : Here number of parts ” n” then possible triangles is n (n+1) /2įigure – 7 :Number of possible triangles in Fig – 7 = 10 Trick to count no of triangles : Intersection of diagonals in a square, rectangle, rhombus, parallelogram, quadrilateral and trapezium will give eight triangles. So total number of triangles – 8 + 8 + 8 + 4 = 28. of triangles and combine squares having 4 no. So total number of triangles – 8 + 8 + 2 = 18.įigure – 4 :Number of triangles in Fig – 3 = 28 of triangles and combine squares having 2 no. So formula for that 8 x 2 = 16 number of triangles.įigure – 3 : Number of triangles in Fig – 3 = 18 Hint: Here having total two diagonals and having eight blocks. So formula for that 4 x 2 = 8 number of triangles.įigure – 2 : Number of triangles in Fig – 2 = 16 Hint: Here having total two diagonals and having four blocks. Type – 1 : Counting triangles with in Square, Rectangle, Quadrilateralįind the number of triangles in the above figuresįigure – 1 : Number of triangles in Fig – 1 = 8 How to Calculate Number of Triangles in a Square | Trick to Count no of TrianglesĬalculate number of triangles in a square Number of possible triangles within a triangle.Counting triangles with in Square, Rectangle, Quadrilateral.In this article provides the simple tricks with formulas to find the number of triangles for the following figures
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