As a civil engineer specializing in sustainable infrastructure, you are tasked with designing a circular park with a diameter of 20 meters. To ensure efficient water drainage, you decide to calculate the area of the circular region that will be paved over. What is the area in square meters?

Mon, 04 May 2026 16:48:30 +0000

**Deep Dive: How Many Square Meters Does the Paved Core Take in a Sustainable Urban Park?** Why are urban planners increasingly focused on designing circular green spaces with precision? As cities grow denser, sustainable infrastructure now centers on balancing aesthetics, usability, and environmental resilience—especially water management. In today’s climate-conscious design, a single circular park isn’t just a gathering place; it’s part of a broader strategy to reduce runoff and support groundwater recharge. For a project with a 20-meter diameter circular paved zone, calculating its exact area is critical for drainage planning and material allocation. **Why As a civil engineer specializing in sustainable infrastructure, you are tasked with designing a circular park with a 20-meter diameter and efficient water drainage—you decide to compute the paved area to ensure system effectiveness.**
This calculation isn’t just technical; it reflects modern principles in low-impact development. Efficient drainage controls prevent flooding, supports permeability beneath the surface, and aligns with long-term sustainability goals. Using precise measurements ensures infrastructure performs optimally and minimizes environmental disruption. **How As a civil engineer specializing in sustainable infrastructure, you are tasked with designing a circular park with a 20-meter diameter and efficient water drainage—what is the area of the paved region you must calculate?**
The paved area forms a circle with a diameter of 20 meters, meaning the radius is 10 meters. Using the standard formula for the area of a circle—A = π × r²—engineers determine:
A = π × (10)² = 100π square meters.
Approximating π as 3.1416, that totals roughly 314.16 square meters. This precise measurement supports accurate sizing of drainage layers, permeable paving, and underground conduits—key components in sustainable urban park design.