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Mathematics 17 Online
OpenStudy (anonymous):

a triangle contains two angles haveing measures of 99° and 42°.find the measure of the third angle. the measures of the missing angle is

OpenStudy (johnweldon1993):

A triangles angles add up to 180...so 180 - 99 - 42 will equal your missing angle

OpenStudy (anonymous):

ok 39

OpenStudy (johnweldon1993):

That would be correct!

OpenStudy (anonymous):

sum of the angles in a triangle is 180 so missing angle is 180-99-42=39

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