Question

which angles are supplementary to each other? ∠hcf and ∠cgb, ∠ibj and ∠gbe, ∠kgc and ∠fce, ∠jbg and ∠ibj

Explanation:

Step1: Recall supplementary - angle definition

Two angles are supplementary if their sum is 180°.

Step2: Analyze linear - pair property

Angles that form a linear pair are supplementary. In the given figure, ∠IBJ and ∠GBE form a linear pair.

Answer:

∠IBJ and ∠GBE