One day Travis is playing soccer and during the game Travis has to decide if he should shoot the ball 15 feet away. Travis is looking at the goal at an angle of 90. He wants to figure out how much power he should use. He sees that tan(70) *15=41.2. He needs to use 41% of power.
Travis was awarded a penalty kick and figure out where to shoot the soccer ball at. He is 10 feet away. He knows that cos(60) *10=5. He needs to shoot it at angle of 5.
Travis has to pass the ball. Travis is standing at an angle of 60. Travis needs to know how far the ball needs to go. He is standing 15 ft away. He knows that 15/tan(60)=8.