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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)

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

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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.

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

  • 5Comments
  • 768. 21 Sep.
  • 768. 37m.


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??

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  • Tetrahedron > Octahedron > Cube > Sphere. 20 Sep.
  • solution please??? tetra > octa > hexa > sphere.......... 20 Sep.
CAN CAN  

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.
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   9Comments
  • median is also perpendicular bisector....use that fa.... 10 Sep.
  • answer :a. 10 Sep.
ABCD is acyclic quadrilateral, AB is a diameter of the circle. If angle ACD=50, the value of angle BAD is..??
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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.

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  • thanx a lot . . @garry1337. 03 Mar.

Yet to realize the secret ingredient within myself

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There are eight rays in a plane with a common end point. The measures of the eight non overlapping angles,in degrees are a,b,c,d,e,f,g and h+4. The numbers a,b,c,d,e,f,g,h are consecutive integers. How many of these angles exceed 45 degree ?

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Find the volume of the largest right circular cone that can be cut out of a cuboid of dimensions
56cm * 21cm * 14cm.
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Ravi mowed the grass on a rectangular lawn of dimesions 30m by 40m. He mowed using a 1m wide strip. He starts moving from one of the corners of the lawn and moved around it towards the center. How many times would he go round before he completed mowing half of the lawn.

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