Question: Problem 1 Three hills A , B and C has elevations D , E , and F of respectively. B is in between A and

Problem

1

Three hills

A, B

and

C

has elevations

D, E,

and

F

of respectively.

B

is in between A and

C

and is

11 k m

from A and

13 k m

from

C

SET A

D = 650 m, E = 615 m

and

F = 590 m

SET B

D = 660 m, E = 625 m

and

F = 595 m

Required:

Considering the effect of curvature and refraction correction what is the clearance or obstruction of the line of sight at

B

considering that

C

is visible from

A .

If a

6 m

tower is erected on top of

B,

what would be the height of equal towers to be erected at A and

C

in order that

A, B

and

C

will be intervisible

What should be the height of tower to be erected at

C

so that

B

and

C

will be intervisible from

A

Problem 1 Three hills A , B and C has elevations

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