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Efficient problem solving

Basic and Rich Geometry Concepts Part 9, Segment Relation for a Secant of a Circle

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A secant of a circle is a line segment from a point external to the circle intersecting it at two points on its periphery. In other words, a circle divides its secant into two segments. In this 9th concept tutorial session on Geometry, the important relation between the secant segments and the tangent segment from the external point is explored in details with proofs...

Basic and Rich Geometry Concepts Part 8, Internal Angle bisectors and Segment Ratios at Incentre of a triangle

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Incentre of a triangle is the centre of the inscribed circle, and also the meeting point of the three internal bisectors.These concepts as well as triangle side to incentre related segmentation relations are discussed with proofs in this 8th concept tutorial session on Geometry...

SSC CGL level Solution Set 89 on number system 11

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In this 89th solution set of 10 practice problem exercise for SSC CGL exam and 11th on topic Number System, a few of the problems especially on fractions should pose a bit of challenge to the student. Solutions are all concept and method based and mostly in mind. The problem solving approach should prove valuable to the students. Its paired question set can be used as a mini-mock test on number system, even for competitive tests other than SSC CGL...

SSC CGL level Question Set 89 on number system 11

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In this 89th question set of 10 practice problem exercise for SSC CGL exam and 11th on topic Number System, a few of the problems especially on fractions should pose a bit of challenge to the student. But with concept and technique based problem solving approach, explained in the paired solution set, the student should easily solve most of the problems wholly in mind. This question set can be used as a mini-mock test on number system, even for competitive tests other than SSC CGL...

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