The volume of rectangular prism = length x height x width so sub in the above equation we get 840 = length x 6 x 10 length = 840 /(60 x 10) length = 14 inches
< 1 and < 2 are vertical angles...because they are opposite angles made by two intersecting lines < 3 and < 4 are adjacent....because they have a common side and a common vertex
