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Allwin Agnel @pagalguy

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Mensuration, Geometry & Co-ordinate Geometry

ABCD is a convex quadrilateral in which <(BAC) = <(CBD) = 30 deg, <(CAD) = 60 deg, <(CDB) = 15 deg. If E is the point of intersection of AC and BD, then measure of <(BEA) in degrees (is)
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ABCD is a square of a side is 10 units.There are four point p,q,r,s inside the square that triangle ABP,BCQ,CDR and DAS(triangle) are equilateral triangle .Find the area in(Sq unit) of a quadrilateral PQRS?

(1)100(rt3-1)

(2)100(2-rt3)

(3)100(2rt3-1)

(4)20(2-rt3)

  • 7 Comments
  • good ques. 05 Nov '14.
  • 100(2-rt(3)) ?. 07 Nov '14.

The angle between two side of a plot measuring 32mand24m is a right angle .The other side measure 25 each and other three angle are not right angle.The area of a plot is

(1)768

(2)534

(3)684

(4)96.5

  • 8 Comments
  • thanks. 02 Nov '14.
  • 3. 05 Nov '14.
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Find the area of a pentagon whose vertices are (-1,0),(5,0),(6,2),(2,5)and(-3,1)?

(1).27.5

(2)28

(3)27

(4)24.5

  • 3 Comments
  • pl exp some. 01 Nov '14.
  • 27\. Divide the Pentagon into 3 triangles and calculate t.... 07 Nov '14.
karan77sethi
@karan77sethi 2

pl exp some

goputrigs
@goputrigs 2

27. Divide the Pentagon into 3 triangles and calculate their respective areas.

There are 6 points on a circle. Each point can be identified without relating it to any other points. Five events occur at 5 of these points,one after the other and each one at a different point. In how many ways can they occur such that no two successive events occur at adjacent points?

 a)84

 b)108

 c)144

 d)14 

ans is 84 ! plz explain hw ?

78 Identical cubes with edges is 2cm each are joined together to form a cuboid.If the perimeter of the base of the cuboid is 64cm,The number of cubes along the height of the cuboid is

48 people answered this question.
6 Comments
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hey can sum1 plz tell me da weightage of mensuration n coordinat geometry questions in cat?

  • 4 to 6 questions for sure..may increase this year. 29 Sep '14.

A cube of side length 3 cm weighs 12 kg . What is the weight of the similar cube of same material whose side length is 12 cm

  • 8 Comments
  • 768. 01 Nov '14.
  • 768. 01 Nov '14.


volume of a sphere, a cube, a tetrahedron and an octahedron are same. For which of the following sturctures, it will have maximum surface area?? what is the rating of their surface areas frm highest t least??

  • 2 Likes   3 Comments
  • Tetrahedron > Octahedron > Cube > Sphere. 20 Sep '14.
  • solution please??? tetra > octa > hexa > sphere.......... 20 Sep '14.
ShashiBharti
Shashi Bhushan @ShashiBharti 20

Tetrahedron > Octahedron > Cube > Sphere

hankmoody
hank moody @hankmoody 28

solution please???

tetra > octa > hexa > sphere......how so??


can anyone tell the formula for height of a regular tetrahedron?

  • sqrt(10)*a. Where a is the side length of the cube from w.... 17 Jun '14.
Saurabh.Acejay
Jaurabh Soglekar @Saurabh.Acejay 6

sqrt(10)*a. Where a is the side length of the cube from which the tetrahedron is formed.

can anyone tell the formula for height of a regular tetrahedron?

can anyone tell the formula for height of a regular tetrahedron?

can anyone tell the formula for height of a regular tetrahedron?

The base of an isosceles triangles is root2. The medians to the legs intersect each other at right angles.The area of the triangle is ?

a) 1.5 b)2 c)2.5 d)3.5

Can any1 please solve this sum ?

  • 1 Like   9 Comments
  • median is also perpendicular bisector....use that fact an.... 10 Sep '14.
  • answer :a. 10 Sep '14.
greatheights123
Raj Malhotra @greatheights123 49


median is also perpendicular bisector....use that fact and find area= 1/2 base *height

ABCD is acyclic quadrilateral, AB is a diameter of the circle. If angle ACD=50, the value of angle BAD is..??

125 people answered this question.
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@prialall @piyush5337 Refer the attachment

Trigonometry :At the foot of a mountain the elevation of its summit is 45 degree ,after ascending 1000m towards the mountain up a stop of 30 degree inclination , the elevation is found to be 60 degree .Find the height of the mountain.

  • 1 Like  
  • thanx a lot . . @garry1337. 03 Mar '14.

Yet to realize the secret ingredient within myself

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