I am assuming that you want me to find the hypotenuse so use the Pythagorean theorem to solve: += a=10cm and b=30cm 100+900=1000 √1000=31.625 The length of I is 31.625 cm
Using a right triangle formed by boat with base and top of lighthouse.Note: 15 minutes = 0.25 degreesLet d be distance the boat is from shore.tan(90−13.25)=d/175 d=175∗tan(76.75)=743.2