Answer:
if the length of the window is 99 cm and the perimeter is 372 cm, the width of the window is 87 cm.
Explanation:
To find the width of a rectangular window given its length and perimeter, we can use the formula for the perimeter of a rectangle.
The formula for the perimeter of a rectangle is:
Perimeter = 2 * (Length + Width)
Let's use this formula to solve the problem:
1. Given that the length of the window is 99 cm, we can substitute this value into the formula:
372 cm = 2 * (99 cm + Width)
2. Simplify the equation:
372 cm = 2 * 99 cm + 2 * Width
372 cm = 198 cm + 2 * Width
3. Subtract 198 cm from both sides of the equation:
372 cm - 198 cm = 198 cm + 2 * Width - 198 cm
174 cm = 2 * Width
4. Divide both sides of the equation by 2 to solve for the width:
174 cm / 2 = 2 * Width / 2
87 cm = Width
Therefore, the width of the rectangular window is 87 cm.
In summary, if the length of the window is 99 cm and the perimeter is 372 cm, the width of the window is 87 cm.