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it depends on the first two:

angle3 = 180 - angle1 - angle2

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A triangle has one angle of 80 degrees an another of 60 degrees how many degrees must there be in the third angle?

The sum of the angles of a triangle is 180 degrees. So we have: 80 + 60 = 140 degrees, the sum of the two angles of the triangle 180 - 140 = 40 degrees, the measure of the third angle. Thus the measure of the third angle is 40 degrees.


If A triangle has one eighty degree angle and another sixty degree angle how many degrees is the third angle?

The sum of the angles in a triangle equals 180, so the third angle is forty degrees. JTPaulson


A triangle has one angle 80 degrees and another of 60 degrees how many degrees must there be in the third angle?

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A triangle has one angle of 80 degrees and another of 60 degrees 60. how many degrees must there be in the third angle?

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A triangle has one angle of 80 degrees and another of 60 dregrees how many degrees must there be in the third angle?

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A triangle has one angle of 80 degrees and another of 60 degreesHow many degrees must there be in the third angle?

Because the sum of the interior angles of a triangle must equal 180 degrees, the third angle must equal 180-80-60 = 40 degrees.


If a triangle has one angle of 80 degrees and another of 60 degrees how many degrees must there be in the third angle?

180 - ( 80 + 60 ) = 40 the answer would be 40 degrees


A triangle has one angle of 80 degrees and anther of 60 degrees how many degrees must there be in the third angle?

The total degrees of all three angles in any triangle must equal 180 drgrees. Therefor the third angle must be 40 degrees (80+60+40=180). Ans by Allen Rice


A triangle has one angle of 80 degress and another of 60 degrees how many degrees must there be in the third triangle?

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