Respuesta :

BlazeCatz
NW is 16. a^2 + b^2= c^2. So you can do (c/400) 20^2- (b/144) 12^2 = (a/256) 16^2. Next two problems are 45 degrees, because all triangles are 180 degrees so 180- the 90degree angle you already have is 90/ the 2 sides left = 45degrees.