Find the measure of ∠c.
a) 10°
b) 14°
c) 20°

d) 30°

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How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Zack notices that segment nm and segment pq are congruent in the image below: which step could him determine if δnmo ≅δpqr by sas? (5 points) segment mo ≅ segment qr segment on ≅ segment qp ∠ n ≅ ∠ r ∠ o ≅ ∠ q