Jawaban:

1.) Like a circle in two-dimensional space, a sphere is mathematically defined as a set of points where all are at the same distance r from a given point in three-dimensional space.[1] This distance r is the radius of the sphere, which is formed from all points with a distance less than or, for a closed sphere, less than or equal to r from a given point, which is the mathematical center of the sphere. It is also referred to as the radius and center of the sphere. The longest straight line segment through the sphere, connecting the two points of the sphere, passes through the center and is thus twice the radius; it is the diameter of both the ball and the ball.

2.) Cubicle is an electrical equipment or equipment that functions as a controller, connector and protector and divides electric power from an electric power source The equipment is assembled and interlocked with fixtures, enclosures and supports. In accordance with IEC 298: 1990 it is defined as factory-assembled metal-enclosed switching and control equipment for alternating current with a rated voltage above 1 kV up to and including 35 kV, for inner pair and outer pair,

and for frequencies up to 50 Hz.

Penjelasan:

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