Q 1: The set of all triangles in a plane having the sum of three angles is less than 180°. Not an empty set An empty set

Q 2: A = {7,8,9} and B = {8,9,10} then find A  B. {7} {7,8,9} None of these {10}

Q 3: If U = {5,10,15,20} and A = {5} Then find A^{c}. {10,20} {} None of these {10,15,20}

Q 4: 5 Î C, is this statement true or false ? True False

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