Explain in detail why the degree of the polynomial below is not 6.

3x^2+6xy-10x^5+y^6-10x^3y^5

and the degree of the polynomial, is the same as the term with the highest degree, in this case 8.

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's