## Geometry: Common Core (15th Edition)

$23^{\circ}$
Complementary angles add up to $90^{\circ}$. To find the measure of the complement of an angle that measures $67^{\circ}$, we subtract $67^{\circ}$ from $90^{\circ}$: measure of the complementary angle = $90^{\circ} - 67^{\circ}$ Subtract to solve: measure of the complementary angle = $23^{\circ}$