Townsville is 50 km from Villagetown. From Villagetown, Townsville is thirty degrees to the right of Boroughcity.
1. How far is Boroughcity from Townsville?
2. How far is Boroughcity from Villagetown?
Monday, April 20, 2009
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dis question is making me confused
ReplyDeletemiss please offer some assistance....
ReplyDeletei got triangle which i labelled bvt and vt is the base.....And with the 30 degrees at bVt also vt is 50 km
ReplyDelete1. How far is Boroughcity from Townsville?
or wat is the lenght of tb in the triangle i sketched..
using trigs....
tan = opp/adj
tan 30/1 = opp/50
opp = 50tan30
opp = 29 km
Boroughcity from Townsville or tb:
tb = 29 Km
2. How far is Boroughcity from Villagetown?
or the lenght of vb in the triangle i skecthed....
trigs here also..
sin = opp/hyp
sin 30/1 = 29/hyp
hyp sin 30 = 29
hyp 0.5 = 29
hyp = 29/0.5
hyp = 58
so
Boroughcity from Villagetown or vb is
vb = 58 Km
:)
so u assumed that the triangle is a right angle triangle ????????????
ReplyDeleteYes, the triangle is right-angled.
ReplyDeleteMiss can you break down this question for me
ReplyDeleteplease