Perimeter = 2 × (15 cm + 10 cm) = 2 × 25 cm

Sat, 02 May 2026 21:03:19 +0000

Perimeter Explained: How to Calculate the Perimeter of a Rectangle (Including a 15 cm by 10 cm Example) Understanding the perimeter of a shape is essential in math, architecture, landscaping, and everyday problem solving. The perimeter represents the total length around the outside of a two-dimensional shape — essentially, the distance you’d travel walking around its edges. In this article, we’ll explore how to calculate the perimeter using a clear and practical example: a rectangle with sides measuring 15 cm and 10 cm. ### What Is Perimeter? The perimeter is a fundamental geometric concept that applies to shapes with straight edges, especially rectangles. For any rectangle, the perimeter formula simplifies to: