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September 23, 2014

September 23, 2014

Posted by **mier** on Sunday, March 9, 2014 at 7:43pm.

- math trig -
**bobpursley**, Sunday, March 9, 2014 at 8:13pmdraw 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 145-h

from the lower triangle, d/145=sin(90-31) solve for d.

Now knowing d, look a the top triangle (base dotted line

d/(145-h)=sin((90-13) you know d, so solve for h.

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