Angle Measurement
acute angles are greater than zero and less than 90 degrees. example 670
obtuse angles are greater than 90 degrees and less than 180 degrees. example 94 0
complementary angles are angles that equal 90 degrees when added together. 60 degrees + 30 degrees = 900
supplementary angles are angles that equal 180 degrees when added together. 150 degrees + 30 degrees = 1800
straight angles are equal to 1800
right angles are equal to 900
return to previous page
return to PCTC