The polygons in each pair are similar. find the missing side length​

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

Need same math paper but the back now i hope your able to read it cleary i need with hw