Answer:
Amount of framing material she need to buy = 4a, where a is the side of square.
a is found out by taking square root of area of picture.
Explanation:
Let the side of square be a. The area of a rectangle is breadth x width. Here breadth = width = side of square
Area of square = a x a = [tex]a^2[/tex]
It is given that area of picture is known, so she can find side of the square by finding square root of the area.
The perimeter of square is given by 4 times the side of square.
We know the side of the square, so we can calculate the perimeter.
Amount of framing material she need to buy = Perimeter of square = 4a
