Question

in fig if AB||CD Find x​

Answer 1

30

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Answer 2

GIVEN:-

AB||CD

TO FIND:-

Value of x

CONSTRUCTION:-

Draw a line OP parallel to AB and CD

EXPLANATIPN:-

$\sf\angle A+x_1=180\;\;\;\;\;(Linear\;pair)\\130+x_1=180\\\boxed{\sf\;x_1=50}\\\\similarly\\\\\angle C+x_2=180\\\\120+x_2=180\\\\\boxed{\sf\;x_2=60}\\\\\\Now,\\x=x_1+x_2\\x=60+50\\x=110 \degree$

So the value of x  is 110°