hediagramshowsaladder,oflength8m,leaningagainsta
verticalwall.
Thebottomoftheladderstandsonhorizontalground,
3mfromthewall.
(a)
Findtheheightofthetopoftheladderabovetheground.
Giveanswertoonedecimalplace.
[3]
(b)Usetrigonometrytocalculatethevalueofyroundedtothe
nearestdegree.
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mano isso e la. pergunta
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