A) \[100{}^\circ ,\,\,100{}^\circ \]
B) \[20{}^\circ ,\,\,20{}^\circ \]
C) \[40{}^\circ ,\,\,90{}^\circ \]
D) \[60{}^\circ ,\,\,60{}^\circ \]
Correct Answer: B
Solution :
\[\angle 2=\angle 4\] (opposite angles) \[\angle 4=\angle 6\] (alternate interior angles) \[\angle 6=\angle 8\] (opposite angles) by comparing \[\angle 2=\angle 8\] \[3x-10=5x-30{}^\circ \] \[2x=20{}^\circ \] \[x=10{}^\circ \] \[\angle 2=3\times 10{}^\circ -10{}^\circ =20{}^\circ \] \[\angle 2=\angle 8=20{}^\circ \]
You need to login to perform this action.
You will be redirected in
3 sec
