# The area of the rectangle is 204 cm2. Length 12 cm. What percentage is the width of the rectangle from its length?

March 25, 2021 | education

| To solve this problem, recall the formula for the area of a rectangle. The area of the rectangle is equal to the product of the length and the width. S = a * b, where a is the length and b is the width. Let’s calculate what the width of a rectangle with an area of 204 sq. and 12 cm long.

b = 204/12 = 17 cm.

Let’s calculate the percentage of the width of the rectangle from its length. To find how many percent one number is from another, you need to find the quotient of these numbers, and then translate it into percentages (for this, multiply the resulting number by 100%).

17/12 * 100 = 1700/12 = 141 2/3%.

Answer: 141 2/3%.