Two equilateral triangles are sitting side-by-side. The length of one side of Triangle A is 5 ft. The sides of Triangle B are 3 times as long as those of Triangle A.

Question

Two equilateral triangles are sitting side-by-side. The length of one side of Triangle A is 5 ft. The sides of Triangle B are 3 times as long as those of Triangle A. 
How long is the length of one side of Triangle B?

bobpursley · Answer

I wonder what sitting side by side means.

Anonymous · Answer

30