Question

given
$l = m$
and angle 1=71 degree , find the measure of all the other angles in the figure shown alongside.
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Answer 1

Answer:

since angle 1 = 71

therefore angle 5 = 71 (corresponding angle)

and angle 4 = 180-71 = 109 (linear pair)

so if angel 5 = 71

therefore angle 7 = 71 (vertically opposite angle)

and if angle 7 = 71

therefore angle 3 = 71 (Correspo. angle)

so angle 1 ,5,7and3 are 71

And if angle 4 = 109

therefore 2 = 109

and 8 = 109

and 6 = 109

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