Fill in the Blanks P1H Ch 04 HW 02 RNAOnline version P1H Ch 04 HW 02 RNA by rpedelty 1 Vectors are described by their . To a vector means to find its components ; a vector's components are the lengths of the vector along . Vector components depend on length and . The sine and the cosine of an angle e are defined in terms of a . The relations for finding the sides of a right triangle in terms of its and are used so often that we have summarized them in Table 4 . 1 for .