Which classification best represents a triangle with side lengths 10 in., 12 in., and 15 in.?
A
obtuse, because 12 squared plus 15 squared is greater than 10 squaredB
obtuse, because 10 squared plus 12 squared is greater than 15 squaredC
acute, because 12 squared plus 15 squared is greater than 10 squaredD
acute, because 10 squared plus 12 squared is greater than 15 squared