Question

15 In given figure
If AB || CD Then value of x is
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Answer 1

Answer:

if we just prove the two traingles similer in the quadilateral then we can find the value of X

let me make it easy for you.

in triangle AOB and DOC we have,

DCO=OAB( ALTERNATE INT.)

ODC=OBA(ALT. INT.)

hence by AA similarity our triangles are similer hence thier sides are also proportional that means

= 2x+4/2x+1 =3/2x+1

= 2x+4 = 3

= x = -1/2

maybe that helps