1

Which of the following can be used in geometrical construction?

 
1) A pair of compasses
2) A ruler
3) A protractor
4) A set square

    • 1), 2) and 3) only
    • 1), 2) and 4) only
    • 2), 3) and 4) only
    • 1), 2), 3) and 4)