Question

Quadrilateral ABCD is a square with diagonals that intersects at point E. Find the perimeter of ABCD

Answer 1

What's the perimeter of ABCD

Answer 2

You know that it is a square, a square has all side lengths equal to each other so if I had a square

then all sides are equal, meaning all sides are length a, meaning in your question, you have side length 25, so all side lengths are equal to 25, you have 4 sides, and that is your perimter

so P=4a
where P is the perimeter, which you want to figure out
a is the side length

P=4(25)=100