A right circular cone has a base radius of 8 cm and a height of 15 cm. What is the slant height of the cone?

Fri, 17 Apr 2026 05:56:10 +0000

**A right circular cone has a base radius of 8 cm and a height of 15 cm. What is the slant height of the cone?** Curious minds often seek practical knowledge rooted in geometry—especially when applications emerge across design, engineering, and everyday convenience. A right circular cone with a base radius of 8 cm and a height of 15 cm is more than a classroom example—it’s a shape that appears in packaging, architecture, and even product innovation. People are increasingly exploring its properties not just for theory, but to understand how physical dimensions translate into real-world functions. Understanding the slant height—the diagonal distance from the base edge to the top along the cone’s curved surface—is essential for accurate measurements in construction, manufacturing, and digital visualization. This dimension plays a critical role in estimating surface area, material needs, and aesthetic proportions. To find the slant height, begin with the cone’s fundamental form: a right circular cone features a circular base and a vertical height perpendicular to that base, connecting the center to the apex. From this base radius (r = 8 cm) and vertical height (h = 15 cm), the slant height (s) forms the hypotenuse of a right triangle, built from r and h. By applying the Pythagorean theorem, s equals the square root of (r² + h²). Substituting the values, s = √(8² + 15²) = √(64 + 225) = √289 = 17 cm. Thus, the slant height measures precisely 17 centimeters.