Answers

2015-05-19T21:33:22+05:30
Let side of the square be a cm
so, a√2 = 12√5
so a = 12√5/√2
4a = 48√5/√2
4a is the perimeter of the square as well as the triangle
so side of the equilateral triangle = 4a/3 = 16√5/√2
so altitude of the equilateral triangle is √3/2 × side
= 16√15/√8
 
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2015-05-19T23:24:25+05:30
Let the side of square= xcm
x√2= 12√5
x=12√5/2
4x= perimeter of square= perimeter of triangle
4×12√5/2= perimeter of triangle [substituting x]
2×12×√2×√5= perimeter of triangle
now simplify and find the answer
1 5 1