CGL 2012 Tier 2 Preparations and Results

The angle of elevation of the sun, when the length of the shadow of a tree 3 times
the height of the tree, is
@JS-M said:
In the following figure AB = 5 and AE = 1. Then find the value of BE x ED.
Answer 4 ???
@gudda1122 said:
The angle of elevation of the sun, when the length of the shadow of a tree 3 times
the height of the tree, is
tan^-1(1/3)
@gudda1122 said:
The angle of elevation of the sun, when the length of the shadow of a tree 3 times
the height of the tree, is
tan -1 (1/3) ??
@simha63 said:
tan^-1(1/3)
method...
@J_SRAN said:
Answer 4 ???
kaise kiya??? logic?

perpendicular would be tree's height and shadow is the base tan a = perpendicular/base

sum of the exterior angles of the cyclic Quadrilateral kya hota hai????

980 hona chahiye

@richie22 said: 980 hona chahiye
wrong post
@gudda1122 said: sum of the exterior angles of the cyclic Quadrilateral kya hota hai????
360 hi hona chaahiye yaar...
@JS-M said: A circle passes through the vertex C of the Rectangle ABCD and touchs its side AB and AD at P and Q respectively. If the distance ofrom C to the line segment PQ is equal to 6 cms. , then what is the area of the Rectangle ABCD?a) 15 b) 36 c) 24 d) 18
@JS-M said:
In the following figure AB = 5 and AE = 1. Then find the value of BE x ED.
@gudda1122 said: sum of the exterior angles of the cyclic Quadrilateral kya hota hai????
sum of any figure with sides is 360

dat y we use 360/ext angle for sides :)
@truly.gone said:
then its fine
arre batao to sahi..............

ye aaise questions daal kar kha chale gye bhai........answer bata do......

@JS-M said: A cyclic quadrilateral , PQRS is inscribes in a circle A tangent RT is drawn to it, /_QRS=140; /_SRT =??
160

Three spherical balls of radius 1 cm, 2 cm
and 3 cm are melted to form a single
spherical ball. In the process, the loss of
material is 25%. The radius of the new ball
is

@simha63 said: Three spherical balls of radius 1 cm, 2 cm and 3 cm are melted to form a single spherical ball. In the process, the loss of material is 25%. The radius of the new ball is
@simha63 3cm??
@truly.gone bhai abhi tak ussi baat pe ho...lagata hai hurt kar gayi.