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10th Grade > Mathematics

CONSTRUCTIONS MCQs

Total Questions : 58 | Page 6 of 6 pages
Question 51.


Image of the division of line segment AB in the ratio 3:2 is given below.
Image Of The Division Of Line Segment AB In The Ratio 3:2 Is...
BAX is a/an :


  1.     acute angle
  2.     right angle
  3.     obtuse angle
  4.     reflex angle
 Discuss Question
Answer: Option A. -> acute angle
:
A
During the construction to divide line segment AB in the given ratio, we draw any ray AX, making an acute angle with AB.
Question 52.


A triangle similar to given ΔABCwith sides equal to 34 of the sides of ΔABC is to be constructed as the given image. Arrange the following steps of construction in order:
1. Join B4C and raw a line through B3( the third point, 3 being smaller of 4 in34) parallel to B4C  to intersect BC at C'.
2. Draw any ray BX making an acute angle with BC on the side opposite to  the vertex A.
3. Locate 4(the greater of 3 and 4 in34) points B1,B2,B3 and B4 on BX  so that BB1=B1B2=B2B3=B3B4
4. Draw a line through C' parallel to the line CA to intersect BA at A'.
A Triangle Similar To Given ΔABCwith Sides Equal To 34 Of T...


  1.     1,2,3,4
  2.     4,3,2,1
  3.     2,3,1,4
  4.     2,1,3,4
 Discuss Question
Answer: Option C. -> 2,3,1,4
:
C
Steps to be followed to for the construction of a similar triangle of ΔABC is given below.
1. Draw any ray BX making an acute angle with BC on the side opposite to  the vertex A.
2.Locate 4(the greater of 3 and 4 in34) points B1,B2,B3 and B4 on BX  so that BB1=B1B2=B2B3=B3B4
3.Join B4C and draw a line through B3( the third point, 3 being smaller of 4 in34) parallel to B4C  to intersect BC at C'.
4.Draw a line through C' parallel to the line CA to intersect BA at A'.
A Triangle Similar To Given ΔABCwith Sides Equal To 34 Of T...
Question 53.


A triangle similar to given ΔABCwith sides equal to 34 of the sides of ΔABC is constructed.
A Triangle Similar To Given ΔABCwith Sides Equal To 34 Of T...
BCBC is equal to____.


  1.     BACA
  2.     BABA
  3.     BCAC
  4.     BCB3C
 Discuss Question
Answer: Option B. -> BABA
:
B
As ΔABCΔABC,
BCBC=BABA=ACAC=34
Question 54.


Initial step for constructing a similar triangle of ΔABC is given below CBX is a/an:
Initial Step For Constructing A Similar Triangle Of ΔABC Is...


  1.     acute angle
  2.     right angle
  3.     obtuse angle
  4.     reflex angle
 Discuss Question
Answer: Option A. -> acute angle
:
A
For the construction of similar triangle, we draw a ray BX making an acute angle with BC on the side opposite to to the vertex A.
Question 55.


Construction of a ΔACB similar to ΔACB is shown in the figure below, which condition is used to construct AC ||AC?
Construction Of A ΔA′C′B Similar To ΔACB Is Shown In T...


  1.     Corresponding angles are equal
  2.     Alternate interior angles are equal
  3.     Co-interior angles are supplementary
  4.     Perpendicular bisector theorem
 Discuss Question
Answer: Option A. -> Corresponding angles are equal
:
A
Here we construct AC||AC by making ACB=ACB and we used the corresponding angle property (if corresponding angles of two lines are equal, then the lines are parallel).
Question 56.


Steps to divide a line segment  AB in the given ratio m : n by drawing alternated angles is given. Choose the correct order.
1.Draw any ray AX making acute angle with AB and  ray BY such that BAX=ABY.
2.Locate the points A1,A2,A3...Am on AX and  B1,B2,B3...Bn on BY such that AA1=A1A2=BB1=B1B2
3.Draw a ray BY parallel to AX by making ABY=BAX
4.Join AmBn.


  1.     1,2,3,4
  2.     1,3,2,4
  3.     2,1,3,4
  4.     2,3,1,4
 Discuss Question
Answer: Option B. -> 1,3,2,4
:
B
Steps to divide a line segment  AB in the given ratio m:n by corresponding angles method is given. Choose the correct order.
1.Draw any ray AX making acuter angle with AB.
2Draw a ray BY parallel to AX by making ABY=BAX
3..Locate the points A1,A2,A3...Am on AX and  B1,B2,B3...Bn on BY such that AA1=A1A2=BB1=B1B2
4.Join AmBn. Let it intersect AB at point C.
Then we get,
Steps To Divide A Line Segment  AB In The Given Ratio M : N...
Question 57.


If a triangle similar to given ΔABC with sides equal to 34 of the sides of ΔABC is to be constructed, then the number of points to be marked on ray BX is __.
If A Triangle Similar To Given ΔABC With Sides Equal To 34 ...


  1.     3
  2.     4
  3.     7
  4.     6
 Discuss Question
Answer: Option B. -> 4
:
B
In the ratio between sides 34 , 4>3
The number of points to be marked on BX to construct similar triangles is 4.
Question 58.


What is the ratio ACBC for the line segment AB following the construction method below?
Step 1. A ray is extended from A and 30 arcs of equal lengths are cut, cutting the ray at A1,A2,...,A30
Step 2. A line is drawn from A30 to B and a line parallel to A30B is drawn, passing through the point A17 and meet AB at C.


  1.     17:30
  2.     17:13
  3.     13:17
  4.     13:30
 Discuss Question
Answer: Option B. -> 17:13
:
B

Here the total number of arcs is equal to m+n in the ratio m:n.


The triangles AA17C and  AA30B are similar.


Hence,  ACAB = AA17AA30=1730


BCAB =  ABACAB
BCAB = 1 -  17301330


Hence, ACBC = 171317:13


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