the perimeter of a rectangle is 42cm and its length is xcm find its width in terms of x
Let the width be 'w'.
Perimeter (P) = 2(L + w) = 42
Substituting L = x, we get:
2(x + w) = 42
x + w = 21
w = 21 - x
Therefore, the width of the rectangle in terms of 'x' is (21 - x) cm.
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I didn't see the complete details
formula for perimeter of a rectangle is: 2(L+B)
since L and B are x then
2(x+x)=42 : 4x=42 ,2x=21