Final answer:
In "The Broken Oar," the types of rhyme utilized are internal and slant rhymes. Slant rhymes feature similar but not identical consonant sounds with differing vowel sounds, while internal rhymes occur within lines of poetry.
Step-by-step explanation:
The poem "The Broken Oar" utilizes two different types of rhyme, specifically internal rhyme and slant rhyme. Internal rhyme occurs when a word within a line of poetry rhymes with another word on the same line or in the middle of the next. Slant rhyme, also known as half rhyme or near rhyme, is when the ending consonants of the words are similar but not identical, and the preceding vowel sounds do not match. An example of slant rhyme from the poem is the pairing of words such as "sacks" and "black" or "butter" and "tar."
Eye rhyme and the quatrain stanzaic form, which is a four-line stanza with various rhyme schemes like AABB, ABBA, AABA, and ABCB, are additional poetic concepts, but they are not the type of rhyme used in "The Broken Oar."
While eye rhyme is when words look like they should rhyme because of spelling but do not when pronounced (e.g., "want/pant"), slant rhyme involves a subtler, imperfect rhyme, which is what "The Broken Oar" employs.