I FOUND YOUR COMPLETE QUESTION IN OTHER SOURCES. SEE ATTACHED IMAGE. First we look for the hypotenuse of both triangles. Left triangle: Sine (68.1) = (1.75) / (h) h = (1.75) / Sine (68.1) h = 1.886108667 h = 1.9m Right triangle: Sine (49.4) = (1.75) / (h) h = (1.75) / Sine (49.4) h = 2.304841475 h = 2.3m Finally adding the perimeter: P = 5 + 1.9 + 2.75 + 2.3 P = 11.95 m Answer: she will need to build 11.95 m of fence
