In figure three angles of the quadrilateral are given .
a) What is the measure of inner angle at D ?
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Answered by
16
Answer:
We know that the sum of all angles of a quadrilateral is equal to 360
Then....
=> A+B+C+D=360
=> 110+70+80+D=360
=> 260+D=360
=> D =360-260
=> D =100
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Answered by
3
Answer:
90
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