There is only one triangle with these side lengths. It is an equilateral triangle, where all three sides have the same length.
As many as you like but they will all be equilateral triangles
There is one equilateral triangle with 3 equal sides of 7in
79"
1ft and 7in
105ft 7in
127 inches.
5ft 7in is 170.18cm
55 inches
There are 151 of them.
Total surface area is 439.82 square inches.
For 6 in 6 in
5ft 7in
7IN.