Question

In the given fig. if DE||BC then find the value of x​

Answer 1

Answer   x=70

Step-by-step explanation: as DE//BC..

the angle at c will  be equal to angle at E

180-120=60

so ,sum of all angles in triangle is 180.

so x+50+60=180

x=70

Answer 2

Answer:

x = 70°

Step-by-step explanation:

if DE||BC then angle c = angle e

therefore e = c = 120

therefore 50+x + (180-120) = 180°

50 + x + 60 = 180°

x = 180 - (50+60)

x = 180 - 110

x = 70°

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