1.

In Fig., ∠AOC and ∠BOC form a pair of (a) vertically opposite angles (b) complementary angles (c) alternate interior angles (d) supplementary angles

Answer»

(d) Since, ∠AOC and ∠BOC are on the same line AOB and forming linear pair.

∴∠AOC + ∠BOC=180°

Hence, ∠AOC and ∠BOC are supplementary angles.



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