Answer:
A) An isosceles Triangle with base 12 yards and height 14 yards.
Step-by-step explanation:
I feel as though this is quite possibly for a major documented test, thus I would feel it necessary to advise you against seeking outside help.
But to adequately answer your question, the answer is A.
This is because you can imagine the shape as a simple net. The height is without a doubt the 14yd because it extends from the base to the tip of the triangle. The BASE can be tricky, except when you imagine it as a NET. If you do so, you'll realize that the length of the perimeter is actually the bottom base of the triangle, in the hypothetical where we need to remove and inspenct a single isoscles triangle from this shape.
