A boy standing on the ground
A boy standing on the ground 12.
From the top ofa lighthouse he:ght 200 feet. the lighthouse keeper
and along th. same line of Sight . The angles of depression for
the B.arze ¯
and respectively. For safety purposes the two sea
be 300 feet apart. If they are less than 300 feet . the keeper has
alarm Does have to sound the alarrm?
_ sz.anQr.g ground spots balloon mo"ing with the wind in a
a coc:s.üzt - •zee elevznon of the balloon from the boy at
SOP. Afie 2 minutes. iron the same point of observation-the angle
30'. If:he speed is 29%' 3 mmin. then. find the height of b
A highway to the foot of a tower . A man standing on the
a vn an of upression of 30'- The is approaching
a Aha 6 mimes. angle of of the ts f,'
•y mc•re mmu:zs *711 it take for the van to reach the tower?
of cf artificial earth satellite is frcxn two ear!
of ze ford to 3(Ynå 60'. ear
ze the '.
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