Base on the diagram you give and the choices where there is two triangle that both have vertexes, lines and segment. By calculating and analyzing the diagram , I conclude that the answer would be D. BD is congruent to RT. I hope i answered your question
Perimeter of a square = 4L
4L = (8x+12)ft
L= (2x+3)ft
The answer if you need helo with math like this come to me -25
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The answer is Letter b
If you subtracted 5 with 2 5/16 you will get answer