Mathematics, 31.08.2019 10:30 marcoantonioperezpan

Susan and mark are standing at different places on a beach and watching a bird. the angles of elevation they make are 20º and 50º, respectively.
if susan and mark are 7 kilometers apart and the bird is between them, the bird is at a height of kilometers [blank] from the ground.

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Susan and mark are standing at different places on a beach and watching a bird. the angles of elevat...