identify three features that make this poem a sonnet and discuss their effect on the poem. (poem added)

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anonymous · Answer

My mistress' eyes are nothing like the sun; 
Coral is far more red than her lips' red; 
If snow be white, why then her breasts are dun; 
If hairs be wires, black wires grow on her head. 
I have seen roses damasked, red and white, 
But no such roses see I in her cheeks; 
And in some perfumes is there more delight 
Than in the breath that from my mistress reeks. 
I love to hear her speak, yet well I know 
That music hath a far more pleasing sound; 
I grant I never saw a goddess go; 
My mistress when she walks treads on the ground. 
And yet, by heaven, I think my love as rare 
As any she belied with false compare.