(e) The measures of angle of parallelogram is 90° then the measures if remaining three
angles are
(a) 90°, 90°.90° (b) 80,90, 100 (c) 70°,90,110° (d) 45,90,135°
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Answer:
90° by co- interior angles method
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As it is a parallelogram, the opposite sides are parallel.
Take the opposite sides as parallel lines and a non parallel side as transversal.
Now the sum of consecutive interior angles is 180.
One angle is given as 90 degrees so the other angle is also 90 degrees.
Similarly you can find all the angles and they all will come out to be 90 degrees.
Therefore option (a) is correct
Take the opposite sides as parallel lines and a non parallel side as transversal.
Now the sum of consecutive interior angles is 180.
One angle is given as 90 degrees so the other angle is also 90 degrees.
Similarly you can find all the angles and they all will come out to be 90 degrees.
Therefore option (a) is correct
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