Answer:
14%
Step-by-step explanation:
The answer is B.
(the equation to solve this with is: a^2 + b^2 = c^2)
A rectangle, is a quadrilateral with all angles at 90°.
a square is a quadrilateral with all equal sides, and right-angles all around.
now, the rectangle as well as the square, have all right-angles, the only difference is that the square has all equal-length sides, whilst a rectangle can have pairs of sides that vary in length.