Radius of figures

Radius of figures– this is a segment that connects the center of a plane figure with its boundary line(in the perpendicular cross-section of the figure or its base) its central point with other points that can be placed on it. It is an important parameter in describing the properties of a circle, sphere, cylinder, cone, and other figures. The radius is equal to half the value of the diameter. Knowing the radius and the numberπ, you can easily calculate the area of a circle(π r2) and the circumference(2 π r).

In engineering and construction, many parts have a cylindrical shape. An important parameter for calculating the characteristics of such elements of machines, mechanisms, and construction structures is the radius.

After measuring or calculating the radius, it is often necessary to find the area and volume(V=π x r2 x h) of the cylinder. Calculating the radius of a circle may be necessary when designing structures with a circular base. These can include water towers and other towers.

Design engineers may face tasks of inscribing a sphere into a cylinder or circumscribing a sphere around a cylinder in various situations. In the calculation, it is necessary to use an online calculator to determineR the base of the sphere.