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Mathematics
15. Area and Perimeter of Triangle and Quadrilateral Shaped Region
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Q21 of 99 Page 267

If the area, perimeter and height of an equilateral triangle are a, s and h, then value of is

Given Area of equilateral triangle = a


Perimeter = s


And height = h


But area of equilateral triangle = = a


Height of equilateral triangle = = h


Perimeter of equilateral triangle = 3 × side = s


Now,



=


And



=



Putting these values in


=


=



Hence the solution is option C

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Questions · 99
15. Area and Perimeter of Triangle and Quadrilateral Shaped Region
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