Ssc cgl-numerical-aptitude-concepts-of-geometry

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Published on February 28, 2014

Author: upscportal

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Ssc cgl-numerical-aptitude-concepts-of-geometry

http://sscportal.in Online Coaching by SSCPORTAL Staff Selection Commission Combined Graduate Level [Tier-1] Subject : Numerical Aptitude Chapter : Concepts of Geometry © SSCPORTAL.IN SSC EXAM Online Coaching

Numerical Aptitude http://sscportal.in Concepts of Geometry Point:A point is defined by its position. It has no length, width or thickness. A straight line joining two points is the shortest distance between them. Three or more points are said to be collinear, if there is a line which contains all of them. Line:A line is defined by its length and has no breadth. It has length units. (metre, foot, centimetre kilometre, etc.). © 2014 SSCPORTAL .IN Join Online Coaching Click Here

Numerical Aptitude http://sscportal.in Concepts of Geometry Angle:When two straight lines meet at a point, they are said to form an angle. Angles generally are measured in degrees. There are 180° in a straight line and a full circle constitutes 360°. 1. Two angles are said to be complementary, if their sum is 90°. Complement of x is (90° – x). 2. Two angles are said to be supplementary, if their sum is 180°. Supplement of x is (180° – x). © 2014 SSCPORTAL .IN Join Online Coaching Click Here

Numerical Aptitude http://sscportal.in Concepts of Geometry 3. An angle which less than 900, is called acute angle. 4. An angle which is greater than 90° is called obtuse angle. 5. An angle which is exactly 90° is called Right Angle and the two lines are said to be Perpendicular to each other. 6. An angle which is greater than two right angles but less than four right angles is said to be Reflex Angle. 7. Angles which lie on either side of a common line are called Adjacent Angles. © 2014 SSCPORTAL .IN Join Online Coaching Click Here

Numerical Aptitude http://sscportal.in Concepts of Geometry 8. If two lines intersect, then Vertically Opposite Angles are equal in magnitude.  Angles Bisector  Parallel Lines  Polygons  Triangles  Scalene Triangle  Isosceles Triangle © 2014 SSCPORTAL .IN Join Online Coaching Click Here

Numerical Aptitude http://sscportal.in Concepts of Geometry  Equilateral Triangle  Right-Angled Triangle  By Pythagoras Theorem  Congruency of Triangles  Similarity of Triangles  Altitude  Angle Bisector  Perpendicular Bisector © 2014 SSCPORTAL .IN Join Online Coaching Click Here

Numerical Aptitude http://sscportal.in Concepts of Geometry  Median  Quadrilaterals  Parallelogram  Rhombus  Rectangle  Square  Trapezium  Circles © 2014 SSCPORTAL .IN Join Online Coaching Click Here

Numerical Aptitude http://sscportal.in Concepts of Geometry  Arcs, Chords and Central Angles  Angles in a Circle  Chords in a Circle  Tangents to a Circle  Pairs of Circles  Cyclic Quadrilateral © 2014 SSCPORTAL .IN Join Online Coaching Click Here

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