A woman wants to make a six inch wide copy of a drawing that is 10 inches wide on the photocopier what percent settings should you use to make a copy the size ​

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle