Sarah wants to get to the top of a building to watch the fireworks. The first building is 112ft up. She is 12 ft away from the building. She needs to find the missing angle! She figures out that the angle is Tan-1(112/12)=83.9 degrees!
Sarah still needs to find a way to the top of the building. The second building is 21 ft tall. The angle is 61 degrees. She needs to find out how far away she is from the building. She finds out that she isx=21/Tan(61)=11.6. She is 11.6 ft away from the second building!
Sarah learned that she cannot go up the first two buildings. But she needs to find another way before the fireworks start!
Another way Sarah can get to the top of the third building is she is 36 ft away from the building. The angle is is 59 degrees. How tall is the building? The building is Tan(59)=59.9 ft. The building is 59.9 ft tall!
Sarah chose to go up the third building!!
Sarah finally made it to the top of the building in time to watch the fireworks!!!