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1. Hey,
Can someone please look through question 8, it is related to trigonometry but I do not know how to do it. The answer for it is in the back of my book, a)29.6km b)50.5
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2. (Original post by randomperson11)
Hey,
Can someone please look through question 8, it is related to trigonometry but I do not know how to do it. The answer for it is in the back of my book, a)29.6km b)50.5
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Angle ace is 180-40-70

so from then on use the cosine rule

after that use cosine rule and find the missing angle
3. (Original post by thefatone)
Angle ace is 180-40-70

so from then on use the cosine rule

after that use cosine rule and find the missing angle
Thank you very much but I needed help with question 8 😅 not question 9
4. (Original post by randomperson11)
Thank you very much but I needed help with question 8 😅 not question 9
oh ok so draw a rough diagram where you have L and a 15km arrow coming out of L at 112° then draw the 26km arrow at a bearing of 200° The angle S makes going anticlockwise from S is 360°-200° so 160° right?

then draw a line connecting A and S then work out the angle between the 26km and 15km distances. use the cosine rule to find distance from A to S

Don't forget to draw a North arrow going up from the point S

since you know that co-interior angles= 180° then you know that the anticlockwise angle Between S and L (160°) so 180°-160°=20° <-- the bit outside the triangle LAS

Use cosine rule to find angle LSA inside the triangle

5. THIS WAS SO HELPFUL THANK YOU SO MUCH AND SORRY FOR TAKING FOREVER TO REPLY, ILL REP YOU AS SOON AS I GET ON MY LAPTOP, IT'S REALLY HARD TO USE THE TSR APP AND IDK HOW TO REP ON IT :/

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