The radius of a circle is 21 m . Find its area to the nearest whole number,

To find the area of a circle, you can use the formula A = πr², where ‘r’ is the radius. In this case, with a radius of 21 m, the area would be A = π(21)². Doing the math, 21² equals 441. Multiplying that by π (approximately 3.14), you get about 1385.44. Rounding it to the nearest whole number, the area is approximately 1385 m².

But did you know that circles have been an important shape throughout history? Ancient civilizations used circles in architecture and art, signifying harmony and unity. The ancient Greeks, for example, viewed the circle as a symbol of perfection, and this perspective influenced their designs in monuments and temples, showcasing the significance of circular shapes even in our modern world!

Now, onto the real-world application: Understanding how to calculate the area of circles is essential in various fields, from engineering to landscaping. Imagine designing a circular garden or a fountain; knowing the area helps you plan how much soil or water you’ll need. This knowledge makes it easier to ensure every project runs smoothly and efficiently, making your outdoor spaces beautiful and functional!