One angle of an isosceles triangle is 100degree find measures of other two angle
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sum of all angles of triangle is 180 degree
therefore 100 +sum of other 2 angle =180
sum of 2 angles =180_100=80degree
therefore each angle =80÷2=40 degree
therefore 100 +sum of other 2 angle =180
sum of 2 angles =180_100=80degree
therefore each angle =80÷2=40 degree
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