It is a square, so you know the sides are equal. You also know that 49 is a squared number. so you do 49 square rooted and you get 7. the perimeter is adding all the side lengths. So you take 7 and multiply it by 4 since a square has 4 sides. and u have your perimeter. 28!<span />
There's a site called m.a.t.h.w.a.y, and you can type in those functions in order to get the graph ;)
Answer:
cosine i think tell me if im wrong
Step-by-step explanation:
