Area of the rectangle with length k units and breadth n units.
kn
Step 1: The area of a rectangle is found by multiplying its length and breadth.
( ext{Area} = ext{length} imes ext{breadth})
Step 2: Here, length (= k) units and breadth (= n) units.
Step 3: Substitute these values into the formula.
( ext{Area} = k imes n)
Step 4: Multiply (k) and (n).
(k imes n = kn)
So, the area (= kn) square units.