Question

heya♥️
Basic Concepts of ch Circles !!
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Answer 1

Answer:Is circle ther are only two theorem 10.1 and 10.2

It is very easy.

and we have to prove the given question

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Answer 2

Step-by-step explanation:

1) Chord →A chord is a line which connecting two interior points of a circle .

2) Tangent → A tangent is a line segment which connects to the circumference of a circle .A tangent is always 90° with the radius drawn to it .

3) sector → when two radius is drawn to the internal points of a circle from the centre with an angle theta then it is said a sector .

4) Semicircle → In a semicircle the angle at the internal points is always

90°

5) Radius → A line segment from the centre to any internal point of a circle is it's radius .

6)Diameter → A line segment connecting two internal points a circle passing through the points is called it's diameter .Diameter is 2 times the radius or,

D = 2r

6)Segment →Ths area between a chord and a arc is the segment .

7) Secant→A Ray pass through the two points (circumference)of a circle

8) Circumference →The total boindary of a citcke is the circumference .