Question

in the given figure find the measure of <ABC,given l || m​

Answer 1

Step-by-step explanation:

<D = <DBC ......... alternate angle

<DBC= 140°= <ABD+<ABC

140°=90°+<ABC

<ABC=140-90

<ABC=50°

Answer 2

Answer:

$\red{ ANSWER IS :50}$

Step-by-step explanation:

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