Question

what is circle?and how many type of theorem.​

Answer 1

A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre; equivalently it is the curve traced out by a point that moves in a plane so that its distance from a given point is constant.

Circle theorems:

• The angle at the centre is twice the angle at the circumference.
• The angle in a semicircle is a right angle.
• Angles in the same segment are equal.
• Opposite angles in a cyclic quadrilateral sum to 180°
• The angle between the chord and the tangent is equal to the angle in the alternate segment

Answer 2

Answer:

Step-by-step explanation:

WHAT IS CIRCLE?

∆ A circle is a round shaped figure that has no corners or edges. In geometry, a circle can be defined as a closed, two-dimensional curved shape.

∆ A circle is a collection of all points in a plane which are at a constant distance from a fixed point. Centre: The fixed point is called the centre. Radius: The constant distance from the centre is called the radius. Chord: A line segment joining any two points on a circle is called a chord.

∆ A circle is the set of all points at a specific distance from a given point in two dimensions. concentric circles. Two or more circles that have the same center, but different radius . congruent circles. Two or more circles with the same radius, but different centers.

THEOREMS OF CIRCLES :

∆ First circle theorem - angles at the centre and at the circumference. Second circle theorem - angle in a semicircle. Third circle theorem - angles in the same segment. Fourth circle theorem - angles in a cyclic quadrilateral.

∆ Circles have different angle properties, described by theorems . There are seven circle theorems. An important word that is used in circle theorems is subtend .

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