If m∠ABC is 160° , and m∠ABD is 92° , what is the angle measure of DBC ? ∠ABD and ∠DBC are adjacent angles inside ∠ABC .(1 point)
The angle sum of a triangle is 180°, so we can find the measure of angle DBC by subtracting the measures of angle ABC and angle ABD from 180°.
m∠DBC = (m∠ABC) - (m∠ABD) = 160° - 92° = 68°
Therefore, the angle measure of DBC is 68°.