A rectangles length is increased by 20% and its width by 10%. If the original dimensions were 50 cm by 30 cm, what is the new area?

Sun, 03 May 2026 13:43:07 +0000

**Why a Rectangle’s Area Grows with Strategic Proportions: What 50x30 Becomes in a 20% Length & 10% Width Increase** When people stumble across the detail that a rectangle’s length increases by 20% and width by 10%—starting from 50 cm by 30 cm—interest often spikes. This subtle yet impactful shift transforms the shape and especially its area. Understanding how this change affects size helps explain growing uses in design, marketing, and urban planning—especially among markets focused on scalability and precision. **The Shift That Matters: From 50x30 to a New Rectangle** Starting with a rectangle measuring 50 centimeters wide and 30 centimeters long, applying a 20% increase to the length means adding 6 cm—bringing length to 56 cm. A 10% increase on 30 cm adds 3 cm, bringing width to 33 cm. Together, the new dimensions are 56 cm by 33 cm. This adjustment might seem minor, but it carries meaningful implications.