An observer wishes to determine the height of a tower. he takes sights at the top of the tower from point A and B which are 50m apart at the same level on a direct line with the tower. the vertical angle of the point A and B are 40 and 60 degrees respectively what is the height of the tower?

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Answers

2016-07-30T10:33:58+08:00
Tan40=h/(50+x)........1.)
      50+x= from the foot of the tower going to A.
      50= DISTAN ce fro B to A;

tan60=h/x;
h= tan60[x.]
x=h/tan60......2.);

1 @ 2;
h= tan40[50 +x];

h=tan40[50 +h/tan60];
h=.84[50+h/\/3];
h=42+.57h;
.43h=42;
h=97.7..ans please review algebraically, i dont have a calcultor


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