Qualification > Math
IGCSE MATHS DOUBTS HERE !!!!
Vin:
Search this thread for your queries first before posting a question.
Still don't get it, ask it here.
elemis:
Dude what is this doing here in the bin ? ::)
Moving it back.
WARRIOR:
QUESTION
A golfer hits the ball B a distance of 170m towards a hole H which measures 195m from the tree T to the green.If this shot is directed 10* away from the ttrue line to the hole , find the distance between his ball and the hole.
help, i cant even draw the diagram for this.
ANSWEr is : 40.4 m
Thank You u in advanced
Vin:
--- Quote from: Kimo Jesus on September 15, 2010, 01:54:06 pm ---QUESTION
A golfer hits the ball B a distance of 170m towards a hole H which measures 195m from the tree T to the green.If this shot is directed 10* away from the ttrue line to the hole , find the distance between his ball and the hole.
help, i cant even draw the diagram for this.
ANSWEr is : 40.4 m
Thank You u in advanced
--- End quote ---
Got it. Gimme two mins. ;)
Vin:
[Attachment 1]
Diag 1 is the basic sketch for the situation. We have to find BT.
In this case you are to use the cos rule.
a2 = b2 + c2 - 2bc . cos A
[Attachment 2]
I have renamed to points so that it fits the equation.
a2 = b2 + c2 - 2bc . cos A
a2 = 1952 + 1702 - 2 * 170 * 195 * cos 10
a2 = 66925 - 66300 . cos10
a =
a = 40.4 m
Hope you get it. I have a bad way of explaining. :P ;)
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