The answer to this question is d
angles EFH and GFH are congruents
for the second equivalence criterion two triangles are equivalents if they have respectively 2 angles and 1 side congruents
the two triangles have congruents the angle right angle (HGF and HEF) and the 55 degrees angles (EFH and GFH); then they have in common the HF side.
so the triangles are congruent and so all the sides are respectively congruent,for example EH with HG:
EH=HG
s+36=7s
s+36-7s=0
s-7s=-36
-6s=-36
6s=36
s=6
<em>sorry for my english</em>
<span>Animals have an excretory system with a support structure called a skeleton</span>
Let's start with the basic sine function<span>, f(t) = </span>sin<span>(t). This </span>function<span> has an amplitude of 1 because the graph goes one unit up and one unit down from the midline of the graph. This </span>function<span> has a </span>period<span> of 2π because the </span>sine<span> wave repeats every 2π units</span>