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The point of concurrence of all angle bisectors of a triangle is called the ......

Incenter is defined as the point of occurrence of all angle bisectors of a triangle. Incircle is the corresponding circle formed with incenter as the center.

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5

Construct ΔDEF such that DE = EF = 6 cm, ∠F = 450 and construct its circumcircle.

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Radius of a circle is 10 cm and distance of a chord from the center is 6 cm. Hence the length of the chord is .........

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The circle which passes through all the vertices of a triangle is called .....

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Length of a chord of a circle is 24 cm. If distance of the chord from the center is 5 cm, then the radius of that circle is ….....