A circle has a radius of 7 units. Calculate the area of the circle, and then find the circumference. Use \(\pi \approx 3.14\).

["Understanding the Area and Circumference of a Circle with a Radius of 7 Units", "A circle is a fundamental geometric shape defined by all points in a plane that are at a fixed distance from a central point—the center. This fixed distance is known as the radius, and in this article, we’ll explore key measurements of a circle with a radius of 7 units, including both the area and circumference.", "---", "### What is the Radius?", "The radius of a circle measures from the center to its edge, directly influencing the circle’s size. With a radius of 7 units, each point on the circle’s boundary lies exactly 7 units from the center.", "---", "### Calculating the Area of the Circle", "The area (A) of a circle is calculated using the formula:", "[\nA = \pi r^2\n]", "Where:\n- (r = 7) (radius in units)\n- (\pi \approx 3.14) (common approximation)", "Substituting the values:", "[\nA = 3.14 \ imes (7)^2 = 3.14 \ imes 49 = 153.86\n]", "So, the area of the circle is 153.86 square units.\nThis represents the total space enclosed within the circle and is essential for understanding the circle’s "size" in planar space.", "---", "### Finding the Circumference of the Circle", "The circumference (C) of a circle is the total distance around its edge, and it is calculated using:", "[\nC = 2\pi r\n]", "Plugging in (r = 7) and (\pi \approx 3.14):", "[\nC = 2 \ imes 3.14 \ imes 7 = 6.28 \ imes 7 = 43.96\n]", "Thus, the circumference is 43.96 units.\nThis measurement is useful in scenarios like estimating the length of a circular fence or the outer edge of a round object.", "---", "### Summary", "For a circle with a radius of 7 units:\n- Area = 153.86 square units\n- Circumference = 43.96 units", "Understanding these values helps in fields ranging from engineering and architecture to everyday applications involving round shapes.", "---", "If you’re working with circular structures or need precise geometric calculations, knowing how to compute area and circumference is essential—and now you have a clear, practical reference using (\pi \approx 3.14)."]