Pleas I don’t know the answer to this question

Answer:
41
Step-by-step explanation:
Think about this as a triangle: the measurements given are the legs and the diagonal wanted is the hypotenuse. We can assume this is a right triangle so you could use trig if you wanted but can also use the Pythagorean theorem which is way easier in this case.
[tex] {a}^{2} + {b}^{2} = {c}^{2} [/tex]
[tex] {35.7}^{2} + {20.1}^{2} = {c}^{2} [/tex]
Rounding to the nearest whole number:
[tex]c = 41[/tex]