Question

HELP ME! A ladder leans against a house at a 60° angle to the ground. If the ladder extends to a length of 132 inches, what is the height of the house rounded to the nearest hundredth of an inch?

Answer 1

use the sin law , a/sinA=b/sinB=c/sinc=2r ,
so 132/sin90=x/sin60

Answer 2

or you can say that the last angle = 180-(60+90)=30
and since this is a right angle triangle and the angle is of measure 30 so the last side is = to half the hypotenuse