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Since ∠A and ∠B are vertical angles, they have the same measure. So, m∠A = m∠B = 22°.
∠B is a complementary angle with ∠C, meaning the sum of their measures is 90°.
We can write this as an equation:
m∠B + m∠C = 90°
Substituting the given values:
22° + m∠C = 90°
This equation can be used to solve for m∠C.