Question

each side of an equilateral traingle is 3cm longer than each side of square .the total perimeter of the square and the triangle is 51 cm .then the side of the triangle in cm is

Answer 1

Perimeter of square be 4×side
Perimeter of triangle be 3×side

Let the side of square be x
Let the side of triangle bex+3

So, the total of there perimeter is 51cm

On taking both
Than, 3x+4x =51
7x=51
X=51/7
Side of square is 7.2cm
And side of triangle is 7.2+3=10.2cm