The expression 4(6.1u) (6.3t-6.1u) will represent the perimeter of the given rectangle.
The rectangle is a geometrical figure in which opposite sides are equal.
The angle between any two consecutive sides will be 90 degrees.
Area of rectangle = length × width.
Perimeter of rectangle = 2( length + width).
Let's suppose
6.1t = x
3.3u = y
Now, the Perimeter of the rectangle is given by
P = 2 (length + width)
So,
P = 2[(x - y)(x - y) + (x + y)(x + y)
P = 2[(x - y)² + (x + y)²]
P = 2[x²+y² - 2xy + x² + y² + 2xy]
P = 4(x² + y²)
So,
P = 4[ (6.1t)² + (3.3u)² ]
Hence "The expression 4(6.1u) (6.3t-6.1u) will represent the perimeter of the given rectangle".
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