La circonferenza

What distinguishes a circumference from a circle in the text?

• The circle is unlimited, the circumference is limited
• The circle is the inner surface, the circumference is the outer surface
• The circle is the outer surface, the circumference is the inner surface
• The circle is unlimited, the circumference is the delimited surface

What is the general equation of a circumference in the Cartesian plane?

• x-y=r
• x+y=r
• x^2 + y^2 = r^2
• (x-h)^2 + (y-k)^2 = r^2

What is the canonical form of the equation of a circumference in the text?

• (x-h)^2 + (y-k)^2 = r^2
• x+y=r
• x^2 + y^2 = r^2
• x-y=r

What is the given definition of a circle in the text?

• A set of points with the same y-coordinate
• A set of points equidistant from a point on the y-axis
• A set of points equidistant from a given point
• A set of points equidistant from the center

How is the equation of a circumference found if a generic point P(x,y) on the circumference is known?

• Using the tangent line formula
• Using the distance formula between two points
• Calculating the average of the coordinates of the point
• Applying the Pythagorean theorem

How are the coordinates of the center and the radius calculated if the equation of the circumference is in canonical form?

• Using the tangent line formula
• Applying the relations deduced from the canonical equation
• Using trigonometric formulas
• Calculating the derivative of the equation

What is the main topic of the video?

• Euclidean geometry
• Trigonometry in the Cartesian plane
• The circumference in analytic geometry
• Plane geometric figures