Three angles of a quadrilateral measure `110^(@), 82^(@) and 68^(@)`. Find the measure of the fourth angle.
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Let the measure of the fourth angle be `x^(@)`.
Then , the sum of the angles of a quadrilateral being `360^(@)`, we
have : `110+82+68 +x=360 rArr 260 +x =360 rArr x = 100. `
Hence, the measure of the fourth angle is `100^(@).`