A rectangle has a perimeter of 38 cm, and its width is 5 cm. What is the length of the rectangle?
P=2×(length +width)
Given that the perimeter (P) of the rectangle is 38 cm and the width is 5 cm, we can substitute these values into the formula and solve for the length (L):
38 cm=2×(length+5 cm)
First, let's simplify the equation:
38 cm=2×length+2×5 cm
38 cm=2×length+10 cm
Now, let's isolate the term containing the length:
38 cm−10 cm=2×length
28 cm=2×length
Now, let's divide both sides by 2 to find the length:
length=28/2 cm
length=14 cm
Therefore, the length of the rectangle is 14 cm.
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