kaylonixoxo kaylonixoxo

26-02-2017
Mathematics

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Help me solve for x please given the quadrilateral is a kite. I'm stuck and tried everything

Help me solve for x please given the quadrilateral is a kite Im stuck and tried everything class=

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HarshawardhanKU HarshawardhanKU

26-02-2017

the key point is
SUM OF INTERIOR ANGLES OF AN QUADRILATERAL IS 360°
100+100+60+(2x-10)=360
260+2x-10=360
2x=110
x=55
so,
the 4th angle is 2(55)-10=100

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