The degree of polynomial $xy+y{z}^2+z^2{x}^3$

Degree of a monomial: The sum of the powers of variables of a monomial is known as degree of monomial. 

Degree of a polynomial: The greatest degree of the terms in the polynomial is the degree of the polynomial.

Degree of $xy$is 2

Degree of $y{z}^2$ is 3

Degree of $z^2{x}^2$is 5

Among 5 is highest

The degree of polynomial $xy+y{z}^2+z^2{x}^3=5$