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Answer 1

Answer:

1:Concurrent Lines Definition. When two or more lines pass through a single point, they are concurrent with each other is known as concurrent lines. A point which is common to all those lines is called the point of concurrency. ... Hence, all these three lines are concurrent with each other.

2: In geometry, the incircle or inscribed circle of a triangle is the largest circle contained in the triangle; it touches (is tangent to) the three sides. The center of the incircle is a triangle center called the triangle's incenter.