In a diagram, ∠A and ∠B are vertical angles, and ∠B is a complementary angle with ∠C. If m∠A=22°, write an equation that you can use to solve for m∠C

Since ∠A and ∠B are vertical angles, they are congruent. Therefore, m∠B = m∠A = 22°.

Since ∠B is complementary to ∠C, we have the equation:

m∠B + m∠C = 90°

Substituting the value of m∠B, we get:

22° + m∠C = 90°

Therefore, the equation we can use to solve for m∠C is:

m∠C = 90° - 22° = 68°