If the angles of a quadrilateral are ( 2x + 9 ) ° , ( x - 2 ) ' , ( 3x + 8 ) ° and ( 4x + 5 ) º . What is the measure of largest interior angle of the quadrilateral ?
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Answer:
38°.
Step-by-step explanation:
2x+9+x-2+3x+8+4x+5=360 (quadrilateral properties)
10x-20=360
x=380/10
x=38°
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