angle made with anticlockwise from north of a right angle=360 deg-90 deg= 270 deg
direction opposite to the angle of 270 deg = 90 deg
ABC has a right angle at B with AC=60, AE=52 and CD=39. Find the length of DE?
Aakash walks 30 m North, then he turns right and walks 60 m.
Again he turns right and walks 45 m.
How far and in which direction is he now from his initial position?
A twelve pointed star is made by extending the sides of a regular 12-sided polygon (a dodecagon). What is the measure of the grey angle?
If lengths of sides AB, BC and AC of a right angle triangle are in a geometric progression, what is the ratio between AC and AB?