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Subject :IMO    Class : Class 9

In ΔDEF and ΔPQR, DE = DF, ∠F = ∠P and ∠E = ∠Q. The two triangles are

A Isosceles but not necessarily congruent
B Isosceles and congruent
C Congruent but not isosceles
D Neither congruent nor isosceles


The answer should be (B). It is because if angleE = angleQ and angleF = angleP, then angleD = angleR so the triangles are similar. Also, we can see that angleE = angleQ and angleF = angleP, so DE = QR and DF = PR, but DE=DF, so QR=PR and hence both triangles are both congruent and isosceles.

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 8

Ans 2:

Class : Class 6

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Subject :IMO    Class : Class 4

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Subject :IMO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1

The correct answer is option D. 


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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 8

Ans 2:

Class : Class 5
yes admin master u r right

Ans 3: (Master Answer)

Class : Class 1

(B):

Length of pole painted red = 1.8 m
∴ Length of pole painted white = 3 × 1.8
= 5.4 m
So, total length of pole = (1.8 + 5.4)m = 7.2 m


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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 7
a is the answer simply do what ask add all the numbers

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Subject :IMO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1

(B):

Number of chocolates Nimisha bought altogether = Number of chocolate boxes bought x Number of chocolates in each box
= 3 x 8 = 24


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Subject :IMO    Class : Class 8

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Subject :IMO    Class : Class 1

Ans 1: (Master Answer)

Class : Class 1

(B):


Total number of triangles = 12
Total number of squares = 4
So, there are (12 – 4) = 8 more triangles than squares.


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