A circle has a radius of 7 cm. What is its area?

Fri, 17 Apr 2026 16:47:17 +0000

**A circle has a radius of 7 cm. What is its area?**
Understanding the basics of circular geometry is both practical and surprisingly relevant in everyday life—from design and architecture to physics and education. Curious why this simple calculation matters more today than ever, especially for US-based learners and professionals, here’s a clear, accurate look at how to find the area of a circle with a 7 cm radius. At first glance, the formula used is A = π × r², where r is the radius—the distance from the center to the edge. For a circle with a 7 cm radius, this becomes A = π × 7² = π × 49 ≈ 153.94 cm². That’s not just a number—it’s a foundation for thinking about space, efficiency, and design in real-world applications. Across the US, interest in practical math like this is rising. From students studying geometry to DIY enthusiasts optimizing workshop layouts and small business owners assessing material use, understanding area helps individuals make smarter, more precise decisions. Unlike vague or abstract math, circular area calculations are concrete, visual, and immediately applicable. Breaking down the math simply:
- The radius is 7 cm
- Square that: 7 × 7 = 49
- Multiply by π (approximately 3.1416): 49 × 3.1416 ≈ 153.94