Law of sines and cosines relate side with sine and cosine of an angle opposite the side in triangle. By sine law, ratios of side to sine of angle are equal.
SSC CGL Geometry Solution Set 6 for Tier II gives you clear idea on how to solve the 10 questions in SSC CGL Tier II Geometry question set 6 in 12 mins.
Centroid divides triangle area into 3 equal parts formed by the longer median segments at centroid and 6 equal parts by all six median segments at centroid.
Geometry for SSC CGL Tier II Solution Set 5 explains how you can solve the 10 selected geometry questions for SSC CGL Tier II easy and quick.
Mensuration for SSC CGL Set 43: Learn how to solve 10 questions on mensuration in 15 minutes by visualization of 2D and 3D shapes and applying formulas.
Know how to visualize the 3D and 2D shapes and apply formulas to solve 10 mensuration questions for SSC CGL Set 42 in 15 minutes.
Learn how to solve 10 questions on mensuration for SSC CGL Set 41 in 15 minutes using mensuration formulas and mensuration quick solution techniques.
Relation between median and sides of triangle: Sum of two sides is larger than the median from common vertex and three times sum of squares of length of sides equals four times the squares of medians of a triangle.
Learn how to solve quickly difficult circle geometry and other geometry problems in SSC CGL Set 39. Quick solutions use geometry problem solving techniques.
Sometimes in the breakneck hurry while struggling with the questions in a cutting edge leading selection test you might meet a problem that doesn't seem right somehow. You figure out the only way to arrive at the solution but out of sheer curiosity you check back the solution value with the given values to verify the sanctity of the problem definition...
