In "Sonnet in Primary Colors" by Rita Dove, the lines that provide an example of a rhyme are:
“her spine resides in, that flaming pillar— / this priestess in the romance of mirrors.”
Here, "pillar" and "mirrors" do not rhyme, but the structure still follows the sonnet form. However, if we look for an example of a rhyme more clearly, we could analyze the end sounds of other lines throughout the sonnet for potential rhyming pairs.
For instance, the end of lines like “window” and “brow” do not provide perfect rhyme either. So, if your goal is specifically to find a rhyme, you may need to analyze additional lines or consider more context from the poem.
If you need clarifications or more specific examples, feel free to ask!