Calvin the Corgi was roaming around the house one day when he spotted a tray of cookies on the stove. He was standing 5 feet away and looking up at them at an angle of 34 degrees. He wonders how high up the cookies are from his mouth, so he decided to use the only solution, trigonometry. He discovers tan(34) * 5 = 3.4. So the cookies are 3.4 feet up on the counter.
Calvin the Corgi then realizes the cookies are too high up for his little legs to reach, so he scurries around for a way to get to them, and he finds a stepstool.
Calvin the Corgi wants to figure out how much closer the stool is from the cookie plate, to see how much easier it will be to eat them. Now that he knows the stool is 1.5 feet high at an angle of 28 degrees. So 3.4 - 1.5 is 1.9, and with that Calvin the Corgi can solve! He uses cos(28) = 2 / x, which when you multiply x to both sides turns to x = 2 / cos (28), and you get 2.265. So, the stool is 2.3 feet away from the cookies.
Calvin the Corgi hops onto the stool, and is just close enough to eat the cookies! He puts his nose down and wonders to himself what angle he is looking down at. He is now 2.3 feet away, and at a height of 1.9 feet. Calvin the Corgi uses tan(x) = 2.3/1.9. He then uses tan -1 (2.3 / 1.9) and gets 50.44. He is looking down at the cookies at a 50.4 degree
Calvin the Corgi proceeds to bury his face into the plate of cookies, and eats all of them. This fills his stomach and he walks off with a grin on his face.