数学题if one side of a triangle is 2 times of another

题目

数学题if one side of a triangle is 2 times of another
if one side of a triangle is 2 times of another side and it has the largest possible area,then the ratio of its three sides is____
A 1:2:3 B 1:1:2 C 1:根号3：2 D 1：2：根号5

答案

c