Which best explains whether a triangle with side lengths 2 in., 5 in., and 4 in. is an acute triangle?
A
The triangle is acute because 22 + 52 > 42.B
The triangle is acute because 2 + 4 > 5.C
The triangle is not acute because 22 + 42 < 52.D
The triangle is not acute because 22 < 42 + 52.