Posted by mier on Sunday, March 9, 2014 at 7:43pm.
A TOWER AND A MONUMENT STAND ON A LEVEL PLANE.THE ANGLES OF DEPRESSION OF THE TOP AND BOTTOM OF THE MONUMENT VIEWED FROM THE TOP OF THE TOWER ARE 13DEGREE AND 31 DEGREE,RESPECTIVELY;THE HEIGHT OF THE TOWER IS 145 FT. FIND THE HEIGHT OF THE MONUMENT.

math trig  bobpursley, Sunday, March 9, 2014 at 8:13pm
draw the figure. let h height of momnument. Let d be the distance from the bottom of the tower to the bottom of the monument.
Draw a dotted horizonal plane from the top of the monument to the tower. Let the distance from this line to the top of the tower be 145h
from the lower triangle, d/145=sin(9031) solve for d.
Now knowing d, look a the top triangle (base dotted line
d/(145h)=sin((9013) you know d, so solve for h.

math trig  Anonymous, Wednesday, February 10, 2016 at 9:19am
143
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