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A quadrilateral has angles that measure 87° 69° in 104° what is the measurement of the fourth angle
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A quadrilateral has angles that measure 87° 69° in 104° what is the measurement of the fourth angle

User Bolhoso
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The sum of a quadrilaterals angles is 360 degrees. You have three of the angles so just need to add those and subtract from 360. Answer is 360-260=100 degrees
User Panchitoboy
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A quadrilateral has angles that add up to 360° so x is the fourth angle in 87+69+104+x=360
260+x=360
x=100° is the fourth angle
User Joao Figueiredo
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User Hassaan
asked Sep 26, 2015 131k views
A quadrilateral has angles that measure 87°, 69°, and 104°. What is the measure of the fourth angle?
Hassaan asked Sep 26, 2015
by Hassaan
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