A circle has a circumference of 31.4 cm. Find the radius and the area.

Sat, 09 May 2026 07:14:57 +0000

[ Discover Why a Circle with a 31.4 cm Circumference Matters Now ] Curious how simple geometry connects to everyday life—and why a circle with a 31.4 cm circumference commands attention today? From product design and fitness tracking to home decor and digital presence, precise measurements shape innovation. This exact measurement—31.4 cm—reveals more than numbers: it’s a fundamental building block in architecture, technology, and personal wellness. Mobile users now regularly explore these concepts through effective, intuitive tools that bridge math and real-world application, especially as visual search and mobile-first learning grow across the U.S. The circumference of 31.4 cm translates directly to a radius of approximately 5 cm, and an area of about 78.5 cm²—insights that clarify space, size, and efficiency. These calculations aren’t just academic; they’re practical, informing decisions from product packaging to fitness routines. With growing interest in precision tools and accessible education, understanding how to derive the radius and area becomes a valuable skill. A circle has a circumference of 31.4 cm. Find the radius and the area. This query reflects a common hands-on need—whether optimizing space in a room, matching gear in design, or validating health metrics. The formula linking circumference (C) to radius (r) — C = 2πr — provides a reliable foundation. Solving for radius gives r = C / (2π), resulting in roughly 5 cm. From there, area follows via A = πr², confirming an area near 78.5 cm². These steps are straightforward yet powerful, offering clarity with simplicity.