What is m<16?
If \(m∠1 + m∠2 = 110, m∠3 = 70\). Since \(m∠3 = m∠18 = m∠13\), we have \(m∠11+m∠12 = 110\), so \(m∠16 = 180 - 110 = 70\).
- Daisy
