On a page in your book, draw a rectangular border that is 1 cm from the top and bottom and 1.5 cm from the left and right sides. What is the perimeter of the border?
The perimeter of the border depends on the page dimensions. If the page is approximately 20 cm × 28 cm, the inner rectangle dimensions would be (20 - 3) cm × (28 - 2) cm = 17 cm × 26 cm, giving perimeter = 2 × (17 + 26) = 86 cm.
Explanation
The border is created by drawing a rectangle 1 cm from top and bottom (subtracting 2 cm from height) and 1.5 cm from left and right (subtracting 3 cm from width). The perimeter of this inner rectangle needs to be calculated based on the actual page dimensions.
Solution Steps
Step 1: Measure the page dimensions (length and width)
Step 2: Calculate inner rectangle dimensions: length = page length - , width = page width -
Step 3: Calculate perimeter = 2 × (length + width)