English

In ∆Abc and ∆Def ∠B = ∠E, ∠F = ∠C and Ab = 3de Then Which of the Statements Regarding the Two Triangles is True ? - Geometry Mathematics 2

Advertisements
Advertisements

Question

 In ∆ABC and ∆DEF ∠B = ∠E, ∠F = ∠C and AB = 3DE then which of the statements regarding the two triangles is true ?

Options

  • The triangles are not congruent and not similar 

  • The triangles are similar but not congruent.

  • The triangles are congruent and similar. 

  • None of the statements above is true. 

MCQ

Solution

In ∆ABC and ∆DEF 
∠B = ∠E,
∠F = ∠C
By AA test of similarity
∆ABC ~ ∆DEF
Since, there is not any congruency criteria like AA.
Thus, ∆ABC and ∆DEF are not congruent.
Hence, the correct option is The triangles are similar but not congruent. 

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Similarity - Problem Set 1 [Page 26]

RELATED QUESTIONS

In the following figure, DE || OQ and DF || OR, show that EF || QR.


Given: FB = FD, AE ⊥ FD and FC ⊥ AD.

Prove that: `(FB)/(AD) = (BC)/(ED)`.


In the figure, given below, the medians BD and CE of a triangle ABC meet at G. Prove that:

  1. ΔEGD ~ ΔCGB and
  2. BG = 2GD from (i) above.

In each of the given pairs of triangles, find which pair of triangles are similar. State the similarity criterion and write the similarity relation in symbolic form: 

 


The perimeter of two similar triangles ABC and PQR are 32cm and 24cm respectively. If PQ = 12cm, find AB. 


In the given figure,  ∠PQR = ∠PST = 90°  ,PQ = 5cm and PS =  2cm.
(i) Prove that ΔPQR ~ ΔPST.
(ii) Find Area of ΔPQR : Area of quadrilateral SRQT. 


In Δ ABC , MN || BC .

If `"AB"/"AM" = 9/4` , find `("Ar" ("trapezium MBCN"))/("Ar" . (triangle "ABC"))`


On a map drawn to a scale of 1 : 2,50,000; a triangular plot of land has the following measurements : AB = 3 cm, BC = 4 cm and  ∠ABC = 90°.

Calculate : the actual lengths of AB and BC in km. 


In the given figure, PQ || AB; CQ = 4.8 cm QB = 3.6 cm and AB = 6.3 cm. Find :

  1. `(CP)/(PA)` 
  2. PQ
  3. If AP = x, then the value of AC in terms of x.


In the figure, given below, PQR is a right-angle triangle right angled at Q. XY is parallel to QR, PQ = 6 cm, PY = 4 cm and PX : XQ = 1 : 2. Calculate the lengths of PR and QR.


PQ is perpendicular to BA and BD is perpendicular to AP.PQ and BD intersect at R. Prove that ΔABD ∼ ΔAPQ and `"AB"/"AP" = "BD"/"PQ"`.


Through the vertex S of a parallelogram PQRS, a line is drawn to intersect the sides Qp and QR produced at M and N respectively. Prove that `"SP"/"PM" = "MQ"/"QN" = "MR"/"SR"`


The dimensions of the model of a building are 1.2m x 75cm x 2m. If the scale factor is 1 : 20; find the actual dimensions of the building.


A model of cargo tuck is made to a scale of 1:40. The length of the model is 15cm. Calculate: The volume of the model if the volume of the truck is 6m3


Check whether the triangles are similar and find the value of x


If figure OPRQ is a square and ∠MLN = 90°. Prove that ∆LOP ~ ∆QMO


PR = 26 cm, QR = 24 cm, ∠PAQ = 90°, PA = 6 cm and QA = 8 cm. Find ∠PQR


In the figure, which of the following statements is true?


In the figure, if ∠FEG ≡ ∠1 then, prove that DG2 = DE.DF


In fig. BP ⊥ AC, CQ ⊥ AB, A−P−C, and A−Q−B then show that ΔAPB and ΔAQC are similar.

In ΔAPB and ΔAQC

∠APB = [   ]°     ......(i)

∠AQC = [   ]°  ......(ii)

∠APB ≅ ∠AQC    .....[From (i) and (ii)]

∠PAB ≅ ∠QAC    .....[______]

ΔAPB ~ ΔAQC     .....[______]


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×