Children with expressive language disorder have difficulty conveying or expressing information in speech, writing, sign language or gesture. (For preschool children, the difficulty expressing themselves in writing is not evident, as they have not started formal education.)
A rectangle is defined as a parallelogram (a quadrilateral with two sets of parallel sides) with the non-parallel sides joining perpendicularly (at 90Â°). A square is a rectangle with the additional constraint the all four sides be of equal length.
Diagonals of a Rectangle. A rectangle has two diagonals, they are equal in length and intersect in the middle. The Diagonal is the square root of (width squared + height squared) : Diagonal d = â(w 2 + h 2).iagonals of a Rectangle. A rectangle has two diagonals, they are equal in length and intersect in the middle. The Diagonal is the square root of (width squared + height squared) : Diagonal d = â(w 2 + h 2).