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Constructions Test - 11

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Constructions Test - 11
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  • Question 1
    1 / -0

    To divide a line segment LM in the ratio 4 : 3, a ray LX is drawn firs such that ∠MLX is an acute angle and then points L1, L2, L3, … are located at equal distances on the ray LX and the points M is joined to

    Solution

    To divide a line segment AB in the ratio m: n, a ray AX is drawn in such that ∠BAX is an acute angle and then points A1, A2, A3, …….., Am, …….. An are located at equal distances on the ray AX and then the point B is joined to AnB.

    • Therefore, according to the question, the point M is joined to L7M

     

  • Question 2
    1 / -0

    To divide a line segment AB in the ration 2 : 5, first a ray AX is drawn, so that ∠BAX is an acute angle and then at equal distances points are marked on the ray such that the minimum number of these points is :

    Solution

    According to the question, the minimum number of those points which are to be marked should be (Numerator + Denominator) i.e. , 2 + 5 = 7

     

  • Question 3
    1 / -0

    To construct a triangle similar to given ΔABC with its sides 7/4 of the corresponding sides of ΔABC, draw a ray BX such that ∠CBX is an acute angle and X is on the opposite side of A with respect to BC. The minimum number of points to be located at equal distances on ray BX is :

    Solution

    When numerator is greater than denominator, then number of arcs should be drawn larger of m and n. Therefore, according to question, the minimum number of points to be located at equal distances on ray BX is 7.

     

  • Question 4
    1 / -0

    To divide a line segment PQ in the ratio 2 : 7, first a ray PZ is drawn so that ∠QPX is an acute angle and then at equal distances points are marked on the ray PX such that the minimum number of these points is :

    Solution

    According to the question, the minimum number of those points which are to be marked should be (Numerator + Denominator) i.e., 2 + 7 = 9

     

  • Question 5
    1 / -0

    To construct a triangle similar to given ΔPQR with its sides 5/8 of the corresponding sides of ΔPQR, first a ray PXis drawn such that ∠QPX is an acute angle and X lies on the opposite side of R with respect to PQ. Then locate points P1, P2, P3…. OnPX at equal distances and next step is to join :

    Solution

    To construct a triangle similar to given ΔABC with its sides m/n of the corresponding sides of ΔABC, first, a ray AX is drawn such that ∠BAX is an acute angle and X lies on the opposite side of C with respect to AB. Then locate points A1, A2, A3…. Am ….. An on AX at equal distances and the next step is to join AnB. Therefore, according to the question, the next step is to join P8 to Q.

     

  • Question 6
    1 / -0

    To divide a line segment LM in the ratio a : b, where a and b are positive integers, draw a ray LX so that ∠MLX is an acute angle and then mark points on the ray LX at equal distances such that the minimum number of these points is :

    Solution

    According to the question, the minimum number of those points which are to be marked should be (Numerator + Denominator) i.e., a + b

     

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