Question

the angle of elevation of the top of Tower from two points on the ground at a distance a metre and B metre from the base of the tower and in the same straight line the complementary prove that height of tower is √ab m

Answer 1

tan@=h/a .......eq(1),

tan(90-@)=h/b
cot@=h/b .........eq(2),

multiplying eq(1) and eq(2), we get

tan@ × cot@=h/a × h/b,

1=h²/ab,

h²=ab,

then
h=√ab

Answer 2

Answer:

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