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Q.

Find the measure of the angle x in the given figure.


Question Image

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a

50∘

b

70∘

c

60∘

d

30∘  

answer is B.

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Detailed Solution

The given figure is,
Question ImageIn ∆DEF, from exterior angle property, we get
∠DEF+∠DFE=∠FDG
Putting their respective values, we get
x=28°+42°
x=70° Thus, the measure of required angle is 70°.
Therefore, the correct option is 2.
 
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