CBSE Class X HOTS Questions of Mathematics ( Heights & Distance) 2012

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Heights & Distance

If the angle of elevation of cloud from a point ‘h’ meters above a lake is QUOTE and the angle of depression of its reflection in the lake is QUOTE , prove that the height of the cloud is QUOTE .
From an aero plane vertically above a straight horizontal road, the angles of depression of two consecutive milestones on opposite sides of the aero plane are observed to be α and β. Show that the height of the aero plane above the road is QUOTE .
Two stations due south of a tower, which leans towards north are at distances ‘a’ and ‘b’ from its foot. If α and β be the elevations of the top of the tower from the situation, prove that its inclination ‘θ’ to the horizontal given by QUOTE
The angle of elevation of the top of a tower from a point on the same level as the foot of the tower is α. On advancing ‘p’ meters towards the foot of the tower, the angle of elevation becomes β. show that the height ‘h’ of the tower is given by h= QUOTE
A boy standing on a horizontal plane finds a bird flying at a distance of 100m from him at an elevation of 300. A girl standing on the roof of 20 meter high building finds the angle of elevation of the same bird to be 450. Both the boy and the girl are on opposite sides of the bird. Find the distance of the bird from the girl
From a window x meters high above the ground in a street, the angles of elevation and depression of the top and the foot of the other house on the

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  • If the angle of elevation of cloud from a point 200 meters above a lake is 30 and the angle of depression of its reflection in the lake is 60 , Find the height of the cloud .

    namonarayan mishra on 20 Mar 2013
  • The angle of elevation of a cloud from point h meters above the surface of a lake is theta and the angle of depression of its reflection in the lake is Phi. Prove that the height of teh cloud above the lake is h(tan phi + tan theta ) / (tan phi – tan theta)

    MANJUSHA on 27 Feb 2013
  • The angle of elevation from a point on the ground is 45.After flying for 15 seconds ,the angle of elevation changes to 30 .If the areoplane is flying at a constant height of 2500m ,find the average speed of aeroplane.

    Ashima arora on 23 Feb 2013
  • examples of hights & distances???
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    and distances problems for class 10, height and distance question, problem of hight distance, MCQs of height and distance chapter, Most Important questions of heights and distances of class Xth, mths sum problem of class 10 of chapter height and distance, problems based on heights and distances

    darshan harkawat on 11 Dec 2012
  • cosA/cosB=m;cosA/cosB=n show that(m^2+n^2)cos^2A=n^2

    aniyan on 09 Aug 2011
  • Respected Sir,
    I want to do B.E Machinecal (Distance) . so iwant to knows Collage From Delhi; Plz inforem

    PRIYA dWIVEDI on 27 Jan 2011