Question

finding angle measures use the figure at the right. 26. if m∠9 = 170°, then m∠6 = ? .

Explanation:

Step1: Identify angle relationship

Angles ∠9 and ∠6 are adjacent and form a linear pair, so they are supplementary (sum to \(180^\circ\)).

Step2: Calculate \(m\angle6\)

Using the supplementary angle formula: \(m\angle6 = 180^\circ - m\angle9\). Substitute \(m\angle9 = 170^\circ\):
\(m\angle6 = 180^\circ - 170^\circ = 10^\circ\).

Answer:

\(10^\circ\)