Posted by les on .
a worker walked 8ft. upa ramp and was 3ft. above ground level. If he walkes an additional 12ft. up the ramp,how many ft. will he be from the ground?

geometery 
anon,
one could say
8/3 = 12/height
h(8/3) = 12
h = (12x3)/8
h = 4.5
or use trigonometry and say
sinX= 3/8
X = (1/sin)3/8
X = 22.02 which is the angle of the incline
so
sin(22.02) = h/12
12sin(22.02) = 4.5