A 30 ft ladder leans against the side of a house. At the point where the ladder and house meet, it makes a 72 degrees. What is the height of the house ?
cmantzioros
Nov 18, 2005, 01:09 PM
SOHCAHTOA
sin x = opposite/hypotenuse
therefore
sin 72 = height of the house/length of the ladder
sin 72 = height/30