How do I find the perimeter of quadrilateral?

Question

One quadrilateral is cut into a diagonal with 85m and 35 degrees. So my teacher told me to do the sine of 35= x over 85 and cosine of 35= y over 85. So I did that, what is my next step? Or is that it?

Answer 1

?????????? leng av diagonal=85 ?????????

diagonal make rite triangel

if angel=35deg, then 1 side=85*sine(35 deg) & othere side=85*kosine(35 deg)

side 1=85*sine(35)=85*0.573576436=48.75399709

side 2=85*kosine(35)=85*0.819152044=69.62792376

half-rim=leng+wide=118.3819209

rim-leng=2*half-rim=236.7638417

Answer 2

add sides