## Thinking Mathematically (6th Edition)

complement: $42^o$ supplement: $132^o$
RECALL: Supplementary angles have a sum of 180 degrees. Complementary angles have a sum of 90 degrees. The complement of the given angle is: $=90^o-48^o \\=42^o$ The supplement of the given angle is: $=180^o-48^o \\=132^o$